View source for User:Miracusaurs/List of non-avian dinosaur species

[[Dinosaurs]] are a diverse group of [[reptile]]s that comprise at least one thousand non-avian species and more than ten thousand avian species, also known as [[bird]]s. Dinosaurs were first recognized as a group by [[Richard Owen]] by 1842, who named it to include the fossil taxa ''[[Megalosaurus]]'', ''[[Iguanodon]]'', and ''[[Hylaeosaurus]]''.<ref>{{cite book |last=Owen |first=Richard |author-link=Richard Owen |chapter=Report on British Fossil Reptiles. Part II |chapter-url=https://archive.org/details/reportofeleventh42lond/page/n99 |date=1842 |title=Report of the Eleventh Meeting of the British Association for the Advancement of Science; Held at Plymouth in July 1841 |url=https://archive.org/details/reportofeleventh42lond |location=[[London]] |publisher=[[John Murray (publishing house)|John Murray]] |pages=[https://archive.org/details/reportofeleventh42lond/page/60 60]–204 |isbn=978-0-8201-1526-9 |lccn=99030427 |oclc=1015526268 |access-date=October 13, 2019}}</ref> Birds, which are the only living dinosaurs, were not recognized as part of this group until later.

== Scope ==
This list covers every Mesozoic non-[[avialan]] dinosaur species that is currently considered valid. Dinosaurs are currently phylogenetically defined as all members of the clade composed of the most recent common ancestor of [[theropod]]s, [[sauropodomorph]]s, and [[ornithischian]]s, and all of its descendants;<ref>{{cite journal |last1=Baron |first1=Matthew G. |last2=Norman |first2=David B. |author-link2=David B. Norman |last3=Barrett |first3=Paul M. |year=2017 |title=A new hypothesis of dinosaur relationships and early dinosaur evolution |journal=[[Nature (journal)|Nature]] |location=London |publisher=[[Nature Research]] |volume=543 |issue=7646 |pages=501–506 |doi=10.1038/nature21700 |pmid=28332513 |bibcode=2017Natur.543..501B |s2cid=205254710 |issn=0028-0836}} "This file contains Supplementary Text and Data, Supplementary Tables 1-3 and additional references.": [https://media.nature.com/original/nature-assets/nature/journal/v543/n7646/extref/nature21700-s1.pdf Supplementary Information]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> however, this list will exclude members of Avialae, which is phylogenetically defined as all taxa more closely related to modern birds than to [[dromaeosaurid]]s or [[troodontid]]s.<ref>{{Cite journal|last1=Field|first1=Daniel J.|last2=Benito|first2=Juan|last3=Chen|first3=Albert|last4=Jagt|first4=John W. M.|last5=Ksepka|first5=Daniel T.|date=18 March 2020|title=Late Cretaceous neornithine from Europe illuminates the origins of crown birds|journal=Nature|language=en|volume=579|issue=7799|pages=397–401|doi=10.1038/s41586-020-2096-0|pmid=32188952|s2cid=212937591 |issn=1476-4687|url=https://www.repository.cam.ac.uk/handle/1810/303639}}</ref> However, taxa which are currently disputed to be non-avian dinosaurs (in lieu of being non-dinosaurian [[dinosauriform]]s or basal avialans), such as [[herrerasaurid]]s, ''[[Archaeopteryx]]'', and ''[[Balaur bondoc|Balaur]]'', are also included for convenience.

The concepts of which taxa are valid, dubious, and invalid are subjective. For this list, valid genera are defined as all genera listed on [[List of dinosaur genera]] that do not have a note attached to them and do not redirect to another page; their taxoboxes should also be set to within Dinosauria. Dubious genera are those who have notes but do not redirect, as well as those labeled as ''nomina dubia'' or potentially synonymous in the literature. Invalid genera are redirects or genera who have susequently been reinterpreted as being non-dinosaurian. On the other hand, dubious or invalid ''species'' are those which are written with question marks or quotation marks on the genus' page.

== The list ==
The following is a list of all Mesozoic non-avian dinosaur species that are currently considered valid, as well as other taxa that have been synonymized in recent years. The list contains the following information:

* '''Genus:''' The genus a taxon represents, accompanied by a citation to the description paper, with a link if possible.
* '''Species:''' The species within a given genus.
* '''Authors:''' The authors who named the species. If a given combination was not the original one, the authors for the current combination will be given first, followed by the original describers of the species.
* '''Year:''' The year a species' description was physically published. If a given combination was not the original one, the year for the current combination will be given first, then the original.
* '''Holotype:''' The [[holotype|name-bearing]] specimen of a species.
* '''Formation:''' The geological formation/s where the species' fossils were found.
* '''Age:''' The geological epoch and age when the fossils date to.
* '''Location:''' The countries and first-level administrative divisions where the fossils were found.
* '''Validity:''' The validity of a species; in addition to labels, dubious and invalid species will have gray cells.
* '''Classification:''' The current classification a species is assigned to. Ranks are to be taken from a classification scheme devised by Justin Tweet.<ref>{{Cite web|author=Justin Tweet|url=https://equatorialminnesota.blogspot.com/p/blog-page_20.html|title=Classification diagrams|website=Equatorial Minnesota|access-date=2022-09-06}}</ref><!--See hidden note under "Classification" below-->
* '''Notes:''' An interesting tidbit of information about the species, or notes clarifying other aspects of the table.
* '''Skeletal elements:''' Images of a skeletal element or a skeletal diagram of the species.
* '''Life restoration:''' A life restoration of the species.
* '''Comments:''' Personal comments about the diagrams and/or restorations.

{| class="wikitable sortable" style="font-size: 85%"
|+ List of non-avian dinosaur species
|-
! | Genus
! | Species
! | Authors
! | Year
! | Holotype <!--May include paratype and/or lectotype if designated-->
! | Formation
! | Age <!--When sorted, they will be arranged according to geological order by age-->
! | Location
! | Validity <!--Sort template numbers: 1 - Valid; 2 - Dubious; 3 - Invalid/Synonymous-->
! | Classification <!--When sorted, they will be arranged in phylogenetic order: 1 - Dinosauria, 2 - Ornithischia, 3 - Heterodontosauridae, 4 - Genasauria; 5 - Thyreophora; 6 - Eurypoda; 7 - Stegosauria; 8 - Huayangosauridae; 9 - Stegosauridae; 10 - Ankylosauria; 11 - Parankylosauria; 12 - Nodosauridae; 13 - Ankylosauridae; 14 - Ankylosaurinae; 15 - Neornithischia; 16 - Cerapoda; 17 - Marginocephalia; 18 - Pachycephalosauria; 19 - Ceratopsia; 20 - Chaoyangsauridae; 21 - Neoceratopsia; 22 - Leptoceratopsidae; 23 - Protoceratopsidae; 24 - Ceratopsoidea; 25 - Ceratopsidae; 26 - Chasmosaurinae; 27 - Centrosaurinae; 28 - Nasutoceratopsini; 29 - Centrosaurini; 30 - Pachyrhinosaurini; 31 - Ornithopoda; 32 - Jeholosauridae; 33 - Thescelosauridae; 34 - Orodrominae; 35 - Thescelosaurinae; 36 - Iguanodontia; 37 - Elasmaria; 38 - Rhabdodontomorpha; 39 - Rhabdodontidae; 40 - Dryosauridae; 41 - Camptosauridae; 42 - Styracosterna; 43 - Hadrosauriformes; 44 - Hadrosauromorpha; 45 - Hadrosauridae; 46 - Saurolophinae; 47 - Brachylophosaurini; 48 - Kritosaurini; 49 - Edmontosaurini; 50 - Saurolophini; 51 - Lambeosaurinae; 52 - Aralosaurini; 53 - Tsintaosaurini; 54 - Parasaurolophini; 55 - Lambeosaurini; 56 - Saurischia; 57 - Herrerasauridae; 58 - Sauropodomorpha; 59 - Unaysauridae; 60 - Plateosauria; 61 - Massopoda; 62 - Riojasauridae; 63 - Massospondylidae; 64 - Sauropodiformes; 65 - Sauropoda; 66 - Lessemsauridae; 67 - Gravisauria; 68 - Eusauropoda; 69 - Turiasauria; 70 - Neosauropoda; 71 - Diplodocoidea; 72 - Rebbachisauridae; 73 - Flagellicaudata; 74 - Dicraeosauridae; 75 - Diplodocidae; 76 - Apatosaurinae; 77 - Diplodocinae; 78 - Macronaria; 79 - Titanosauriformes; 80 - Brachiosauridae; 81 - Somphospondyli; 82 - Euhelopodidae; 83 - Titanosauria; 84 - Theropoda; 85 - Neotheropoda; 86 - Coelophysoidea; 87 - Dilophosauridae; 88 - Averostra; 89 - Ceratosauria; 90 - Ceratosauridae; 91 - Abelisauroidea; 92 - Abelisauridae; 93 - Noasauridae; 94 - Elaphrosaurinae; 95 - Noasaurinae; 96 - Tetanurae; 97 - Megalosauroidea; 98 - Piatnitzkysauridae; 99 - Megalosauridae; 100 - Spinosauridae; 101 - Avetheropoda; 102 - Megaraptora; 103 - Carnosauria; 104 - Metriacanthosauridae; 105 - Allosauridae; 106 - Carcharodontosauria; 107 - Carcharodontosauridae; 108 - Neovenatoridae; 109 - Coelurosauria; 110 - Indeterminate coelurosaurs; 111 - Tyrannoraptora; 112 - Tyrannosauroidea; 113 - Proceratosauridae; 114 - Tyrannosauridae; 115 - Compsognathidae; 116 - Maniraptoriformes; 117 - Ornithomimosauria; 118 - Ornithomimidae; 119 - Maniraptora; 120 - Alvarezsauroidea; 121 - Alvarezsauridae; 122 - Therizinosauria; 123 - Therizinosauroidea; 124 - Therizinosauridae; 125 - Oviraptorosauria; 126 - Caudipteridae; 127 - Caenagnathoidea; 128 - Caenagnathidae; 129 - Oviraptoridae; 130 - Paraves; 131 - Scansoriopterygidae; 132 - Deinonychosauria; 133 - Archaeopterygidae; 134 - Troodontidae; 135 - Dromaeosauridae; 136 - Microraptoria; 137 - Eudromaeosauria; 138 - Unenlagiidae; 139 - Halszkaraptorinae; 140 - Unenlagiinae-->
! class=unsortable | Notes
! class=unsortable | Skeletal elements<!--Use skeletal diagrams and/or holotype material whenever possible. Life restorations should preferably depict the taxon by itself-->
! class=unsortable | Life restoration
! class=unsortable | Comments<!--These are WP:OR; do not add if article is published-->
|-
| '''''[[Aardonyx]]'''''<br><small>[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2842739 Yates ''et al.'', 2010]</small><ref name=Aardonyx>{{Cite journal |last=Yates |first=A. M. |last2=Bonnan |first2=M. F. |last3=Neveling |first3=J. |last4=Chinsamy |first4=A. |last5=Blackbeard |first5=M. G. |year=2010 |title=A new transitional sauropodomorph dinosaur from the Early Jurassic of South Africa and the evolution of sauropod feeding and quadrupedalism |journal=Proceedings of the Royal Society B |pmid=19906674 |volume=277 |issue=1682 |pmc=2842739 |pages=787–794 |doi=10.1098/rspb.2009.1440 }}</ref>
| '''''[[Aardonyx celestae]]'''''
| Yates, Bonnan, Neveling, Chinsamy, & Blackbeard
| 2010<ref name=Aardonyx />
| BP/1/6254;{{efn|name=unknown|unknown}} BP/1/6505<ref name=Aardonyx />{{refn|group=nb|Despite being found away from the holotype, it may represent the same bone<ref name=Aardonyx />}}
| [[Elliot Formation|Upper Elliot Formation]]
| data-sort-value=5 | [[Sinemurian]]–[[Pliensbachian]], [[Early Jurassic]]<ref name=Elliot>{{Cite journal |last=Bordy |first=Emese M. |last2=Abrahams |first2=Miengah |last3=Sharman |first3=Glenn R. |last4=Viglietti |first4=Pia A. |last5=Benson |first5=Roger B.J. |last6=McPhee |first6=Blair W. |last7=Barrett |first7=Paul M. |last8=Sciscio |first8=Lara |last9=Condon |first9=Daniel |last10=Mundil |first10=Roland |last11=Rademan |first11=Zandri |date=April 2020 |title=A chronostratigraphic framework for the upper Stormberg Group: Implications for the Triassic-Jurassic boundary in southern Africa |url=https://par.nsf.gov/servlets/purl/10144138 |journal=Earth-Science Reviews |volume=203 |pages=103120 |doi=10.1016/j.earscirev.2020.103120 |issn=0012-8252}}</ref>
| {{flag|South Africa}}<br>({{flag|Free State Province|name=Free State}})
| data-sort-value=1 | Valid
| data-sort-value=64 |[[Sauropodiformes]]<ref name=Schleitheimia>{{cite journal |last1=Rauhut |first1=O. W. M. |last2=Holwerda |first2=F. M. |last3=Furrer |first3=H. |title=A derived sauropodiform dinosaur and other sauropodomorph material from the Late Triassic of Canton Schaffhausen, Switzerland |journal=Swiss Journal of Geosciences |date=2020 |volume=113 |issue=1 |pages=8 |doi=10.1186/s00015-020-00360-8|s2cid=220294939 }}</ref>
| Preserves adaptations for both bipedal and quadrupedal locomotion
| [[File:Aardonyx skull.png|frameless]]
| [[File:Aardonyx NT.jpg|frameless]]
|
|-
| '''''[[Abdarainurus]]'''''<br/><small>[https://doi.org/10.1080%2F14772019.2020.1716402 Averianov & Lopatin, 2020]</small><ref name=Abdarainurus>{{Cite journal|last=Averianov|first=A.O.|last2=Lopatin|first2=A.V.|year=2020 |title=An unusual new sauropod dinosaur from the Late Cretaceous of Mongolia|journal=Journal of Systematic Palaeontology|volume=18|pages=1009-1032|doi=10.1080/14772019.2020.1716402}}</ref>
| '''''[[Abdarainurus barsboldi]]'''''
| Averianov & Lopatin
| 2020<ref name=Abdarainurus />
| PIN{{efn|name=pin|[[Paleontological Institute, Russian Academy of Sciences|Borissiak Palaeontological Institute]], [[Russian Academy of Sciences]], [[Moscow]], Russia}} 5669/1<ref name=Abdarainurus />
| [[Alagteeg Formation]]
| data-sort-value=24 | [[Santonian]]–[[Campanian]],<ref name=Djadochta>{{cite journal|last1=Hasegawa|first1=H.|last2=Tada|first2=R.|last3=Ichinnorov|first3=N.|last4=Minjin|first4=C.|date=2009|title=Lithostratigraphy and depositional environments of the Upper Cretaceous Djadokhta Formation, Ulan Nuur basin, southern Mongolia, and its paleoclimatic implication|journal=Journal of Asian Earth Sciences|volume=35|issue=1|pages=13−26|bibcode=2009JAESc..35...13H|doi=10.1016/j.jseaes.2008.11.010}}</ref> [[Late Cretaceous]]
| {{flag|Mongolia}}<br>({{flag|Ömnögovi}})
| data-sort-value=1 | Valid
| data-sort-value=81 | [[Somphospondyli]]<ref name=Abdarainurus />
| May represent a unique lineage of Asian macronarians, potentially titanosaurs
| [[File:Abdarainurus.jpg|frameless]]
|
| Silhouette is too generic
|-
| '''''[[Abditosaurus]]'''''<br/><small>[https://www.nature.com/articles/s41559-021-01651-5 Vila ''et al.'', 2022]</small><ref name=Abditosaurus>{{Cite journal|last1=Vila|first1=Bernat|last2=Sellés|first2=Albert|last3=Moreno-Azanza|first3=Miguel|last4=Razzolini|first4=Novella L.|last5=Gil-Delgado|first5=Alejandro|last6=Canudo|first6=José Ignacio|last7=Galobart|first7=Àngel|year=2022|title=A titanosaurian sauropod with Gondwanan affinities in the latest Cretaceous of Europe|journal=Nature Ecology & Evolution|volume=6 |issue=3 |pages=288–296|doi=10.1038/s41559-021-01651-5|pmid=35132183|s2cid=246650381|url=https://www.nature.com/articles/s41559-021-01651-5}}</ref>
| '''''[[Abditosaurus kuehnei]]'''''
| Vila, Sellés, Moreno-Azanza, Razzolini, Gil-Delgado, Canudo, & Galobart
| 2022<ref name=Abditosaurus />
| MNCN{{efn|[[Museo Nacional de Ciencias Naturales]], [[Madrid]], Spain}} coll.; MCD{{efn|name=mcd|Museo de la Conca Dellà, [[Isona]], Spain}} coll.<ref name=Abditosaurus />
| [[Tremp Group|Conques Formation]]
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref name=Abditosaurus />
| {{flag|Spain}}<br>({{flag|Catalonia}})
| data-sort-value=1 | Valid
| data-sort-value=83 | [[Titanosauria]]<ref name=Abditosaurus />
| Larger and distantly related to native European titanosaurs
| 
| [[File:Abditosaurus kuehnei.png|frameless]]
| Wattle may be too speculative and/or brightly colored
|-
| '''''[[Abelisaurus]]'''''<br/><small>[https://www.researchgate.net/publication/237714676 Bonaparte & Novas, 1985]</small><ref name=Abelisaurus>{{Cite journal|last1=Bonaparte|first1=J.|last2=Novas|first2=E.E.|date=1985|title=Abelisaurus comahuensis, n.g., n.sp., Carnosauria del Crétacico Tardio de Patagonia|trans-title=Abelisaurus comahuensis, n.g., n.sp., Carnosauria from the Late Cretaceous of Patagonia|url=https://www.researchgate.net/publication/237714676|journal=Ameghiniana|volume=21|pages=259–265|via=ResearchGate}}</ref>
| '''''[[Abelisaurus comahuensis]]'''''
| Bonaparte & Novas
| 1985<ref name=Abelisaurus/>
| MC{{efn|[[Carlos Ameghino Provincial Museum|Museo de Cipolletti]], [[Cipolletti]], Argentina}} 11098<ref name=Abelisaurus />
| data-sort-value=Allen_Formation | [[Allen Formation]]?<ref name=Allen>{{Cite journal|last1=Gianechini|first1=Federico A.|last2=Apesteguía|first2=Sebastián|last3=Landini|first3=Walter|last4=Finotti|first4=Franco|last5=Juárez Valieri|first5=Rubén|last6=Zandonai|first6=Fabiana|date=2015-05-01|title=New abelisaurid remains from the Anacleto Formation (Upper Cretaceous), Patagonia, Argentina|url=http://www.sciencedirect.com/science/article/pii/S0195667114002201|journal=Cretaceous Research|language=en|volume=54|pages=1–16|doi=10.1016/j.cretres.2014.11.009|issn=0195-6671}}</ref>/[[Anacleto Formation]]?
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]<ref name=Allen/>
| {{flag|Argentina}}<br>({{flag|Río Negro (Argentina)|name=Río Negro}})
| data-sort-value=1 | Valid
| data-sort-value=92 | [[Abelisauridae]]<ref name=Abelisaurus />
| Only known from a single partial skull
| [[File:Abelisaurus skull.jpg|frameless]]
| [[File:Abelisaurus comahuensis jmallon.jpg|frameless]]
| 
|-
| '''''[[Abrictosaurus]]'''''<br/><small>[https://journals.co.za/doi/pdf/10.10520/AJA00382353_5145 Hopson, 1975]</small><ref name=Abrictosaurus>{{Cite journal|last=Hopson|first=J.A.|date=1975|title=On the Generic Separation of the Ornithischian Dinosaurs ''Lychorhinus'' [sic] and ''Heterodontosaurus'' from the Stormberg Series (Upper Triassic) of South Africa|journal=South African Journal of Science|url=https://journals.co.za/doi/pdf/10.10520/AJA00382353_5145|volume=71|issue=10|pages=302–305}}</ref>
| '''''[[Abrictosaurus consors]]'''''
| data-sort-value=Hopson | Hopson (Thulborn)
| data-sort-value=1975 | 1975<ref name=Abrictosaurus /> (1974)<ref>{{Cite journal|last=Thulborn|first=R.A.|date=1974|title=A new heterodontosaurid dinosaur (Reptilia: Ornithischia) from the Upper Triassic Red Beds of Lesotho|journal=Zoological Journal of the Linnean Society|volume=55|issue=2|pages=151–175|doi=10.1111/j.1096-3642.1974.tb01591.x}}</ref>{{refn|group=nb|as ''Lycorhinus consors''}}
| BMNH{{efn|name=nhmuk|[[Natural History Museum, London|Natural History Museum]], [[London]], United Kingdom}} RUB54<ref name=Abrictosaurus2>{{cite journal |last=Butler |first=Richard J. |author2=Upchurch, Paul|author3=Norman, David B.|author3-link=David B. Norman|title=The phylogeny of the ornithischian dinosaurs|journal=Journal of Systematic Palaeontology |volume=6 |issue=1 |year=2008 |pages=1–40 |doi=10.1017/S1477201907002271|s2cid=86728076 }}</ref>{{refn|group=nb|Formerly UCL{{efn|[[University College London]], [[London]], [[United Kingdom]]}} B54<ref name=Abrictosaurus />}}
| [[Elliot Formation|Upper Elliot Formation]]
| data-sort-value=5 | [[Sinemurian]]–[[Pliensbachian]], [[Early Jurassic]]<ref name=Elliot />
| data-sort-value=Lesotho_(Qacha's_Nek) | {{flag|Lesotho}}<br>([[Qacha's Nek District|Qacha's Nek]]){{refn|group=nb|name=holo}}<ref>{{cite journal |first1=Paul C. |last1=Sereno |year=2012 |title=Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs |journal=ZooKeys |issue=226 |pages=1–225 |doi=10.3897/zookeys.226.2840 |pmid=23166462 |pmc=3491919|doi-access=free }}</ref><br>{{flag|South Africa}}<br>({{flag|Eastern Cape}})
| data-sort-value=1 | Valid
| data-sort-value=3 | [[Heterodontosauridae]]<ref name=Abrictosaurus />
| Known from two skulls, one of which possesses tusks; this may or may not be an example of [[sexual dimorphism]]<ref>{{Cite book|last1=Weishampel|first1=D.B.|title=The Dinosauria|last2=Witmer|first2=L.M.|date=1990|publisher=University of California Press|isbn=9780520067264|editor-last=Osmólska|editor-first=H.|location=Berkeley|pages=486–497|chapter=Heterodontosauridae|oclc=20670312|editor2-last=Dodson|editor2-first=P.|editor3-last=Weishampel|editor3-first=W.B.}}</ref>
| [[File:Abrictosaurus skull diagram.jpg|frameless]]
| [[File:Abrictosaurus dinosaur.png|frameless]]
| Life restoration has too few filaments (cf. ''Tianyulong'')
|-
| '''''[[Abrosaurus]]'''''<br/><small>[https://naturalhistory.si.edu/sites/default/files/media/translated_publications/Ouyang_89.pdf Ouyang, 1989]</small><ref name=Abrosaurus>{{Cite journal|last=Hui|first=O.|date=1989|title=A new sauropod from Dashanpu, Zigong Co. Sichuan Province (''Abrosaurus dongpoensis'' gen. et sp. nov.)|url= https://naturalhistory.si.edu/sites/default/files/media/translated_publications/Ouyang_89.pdf|journal=Zigong Dinosaur Museum Newsletter|volume=2|pages=10–14}}</ref>
| '''''[[Abrosaurus dongpoi]]'''''{{refn|group=nb|Originally described as ''Abrosaurus dongpoensis''; corrected by Peng & Shu, 1999<ref>{{Cite journal|last1=Peng|first1=S.|last2=Shu|first2=C.|date=1999|title=Vertebrate Assemblage of the Lower Shaximiao Formation of Sichuan Basin, China|journal=Proceedings of the Seventh Annual Meeting of the Chinese Society of Vertebrate Paleontology|location=Beijing|publisher=China Ocean Press|pages=27–35}}</ref>}}
| Ouyang
| 1989<ref name=Abrosaurus />
| ZDM{{efn|name=zdm|[[Zigong Dinosaur Museum]], [[Zigong]], China}} 5033<ref name=Abrosaurus />
| [[Shaximiao Formation|Xiashaximiao Formation]]
| data-sort-value=10 | [[Bathonian]]<ref name=Xiashaximiao1>{{Cite journal |last=Zhou |first=Yuxuan |last2=Dai |first2=Hui |last3=Yu |first3=Haidong |last4=Ma |first4=Qingyu |last5=Tan |first5=Chao |last6=Li |first6=Ning |last7=Lin |first7=Yu |last8=Li |first8=Deliang |date=2022-04-15 |title=Zircon geochronology of the new dinosaur fauna in the Middle Jurassic lower Shaximiao Formation in Chongqing, SW China |url=https://www.sciencedirect.com/science/article/pii/S0031018222000645 |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |language=en |volume=592 |pages=110894 |doi=10.1016/j.palaeo.2022.110894 |issn=0031-0182}}</ref>–[[Oxfordian (stage)|Oxfordian]],<ref name=Xiashaximiao2>{{Cite journal|last1=Moore|first1=Andrew J.|last2=Upchurch|first2=Paul|last3=Barrett|first3=Paul M.|last4=Clark|first4=James M.|last5=Xing|first5=Xu|date=2020-08-17|title=Osteology of ''Klamelisaurus gobiensis'' (Dinosauria, Eusauropoda) and the evolutionary history of Middle–Late Jurassic Chinese sauropods|url=https://discovery.ucl.ac.uk/id/eprint/10101710/1/Mooreetal2020%28Klamelisaurus%20green%20OA%29.pdf|journal=Journal of Systematic Palaeontology|volume=18|issue=16|pages=1299–1393|doi=10.1080/14772019.2020.1759706|s2cid=219749618|issn=1477-2019}}</ref>  [[Middle Jurassic|Middle]]–[[Late Jurassic]]
| data-sort-value=China_(Sichuan) | {{flag|China}}<br>([[Sichuan]])
| data-sort-value=1 | Valid
| data-sort-value=65 | [[Sauropoda]]<ref name=Abrosaurus2>{{Cite book|last1=Upchurch|first1=P.|title=The Dinosauria|last2=Barrett|first2=P.M.|last3=Dodson|first3=P.|date=2004|publisher=University of California Press|isbn=9780520941434|editor-last=Dodson|editor-first=P.|edition=2nd|location=Berkeley, California|pages=259–322|chapter=Sauropoda|oclc=801843269|editor2-last=Osmólska|editor2-first=H.|editor3-last=Weishampel|editor3-first=D.B.}}</ref>
| Had unusually large nasal openings in its skull
| [[File:Abrosaurus skull.jpg|frameless]]
| [[File:Abrosaurus2.jpg|frameless]]
|
|-
| '''''[[Abydosaurus]]'''''<br/><small>[https://doi.org/10.1007%2Fs00114-010-0650-6 Chure ''et al.'', 2010]</small><ref name=Abydosaurus>{{Cite journal|last=Chure|first=D.|author2=Britt|first2=B.|author3=Whitlock|first3=J.A.|author4=Wilson|first4=J.A.|year=2010|title=First complete sauropod dinosaur skull from the Cretaceous of the Americas and the evolution of sauropod dentition|journal=[[Naturwissenschaften]]|volume=97|issue=4|pages=379–391|doi=10.1007/s00114-010-0650-6|pmc=2841758|pmid=20179896}}</ref>
| '''''[[Abydosaurus mcintoshi]]'''''
| Chure, Britt, Whitlock, & Wilson
| 2010<ref name=Abydosaurus />
| DINO{{efn|[[Dinosaur National Monument]], United States}} 16488<ref name=Abydosaurus />
| [[Cedar Mountain Formation]]
| data-sort-value=20 | [[Albian]], [[Early Cretaceous]]<ref name=Abydosaurus />
| data-sort-value=United_States_(Utah) | {{flag|United States}}<br>({{flag|Utah}})
| data-sort-value=1 | Valid
| data-sort-value=80 | [[Brachiosauridae]]<ref name=Abydosaurus />
| Had a domed skull very similar to that of ''Giraffatitan'' despite living millions of years later
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Abydosaurus mcintoshi (sauropod dinosaur) (Cedar Mountain Formation, Lower Cretaceous; Dinosaur National Monument, Utah, USA) 2 (48694534456).jpg|frameless]]</div>
| [[File:Abydosaurus NT.jpg|frameless]]
| Life restoration does not match skull proportions
|-
| '''''[[Acantholipan]]'''''<br/><small>[https://doi.org/10.1007%2Fs13358-018-0153-1 Rivera-Sylva ''et al.'', 2018]</small><ref name=Acantholipan>{{Cite journal|last1=Rivera-Sylva|first1=H.E.|last2=Frey|first2=E.|last3=Stinnesbeck|first3=W.|last4=Carbot-Chanona|first4=G.|last5=Sanchez-Uribe|first5=I.E.|last6=Guzmán-Gutiérrez|first6=J.R.|date=2018|title=Paleodiversity of Late Cretaceous Ankylosauria from Mexico and their phylogenetic significance|journal=Swiss Journal of Palaeontology|volume=137|issue=1|pages=83–93|doi=10.1007/s13358-018-0153-1|s2cid=134924657|issn=1664-2376}}</ref>
| '''''[[Acantholipan gonzalezi]]'''''
| Rivera-Sylva, Frey, Stinnesbeck, Carbot-Chanona, Sanchez-Uribe, & Guzmán-Gutiérrez
| 2018<ref name=Acantholipan />
| CPC{{efn|Colección Paleontológica de Coahuila, Museo del Desierto, [[Saltillo]], Mexico}} 272<ref name=Acantholipan />
| [[Pen Formation]]
| data-sort-value=24 | [[Santonian]], [[Late Cretaceous]]<ref name=Acantholipan />
| {{flag|Mexico}}<br>({{flag|Coahuila}})
| data-sort-value=1 | Valid
| data-sort-value=12 | [[Nodosauridae]]<ref name=Acantholipan />
| Known to possess spike-like osteoderms
|
| [[File:Acantholipan gonzalezi.jpg|frameless]]
| Something feels off about the positioning of the legs
|-
| style="background:#E6E6E6;" | '''''[[Acanthopholis]]'''''<br/><small>[https://zenodo.org/record/2336933 Huxley, 1867]</small><ref name=Acanthopholis>{{Cite journal|last=Huxley|first=T.H.|date=1867|title=IV.—On ''Acanthopholis Horridus'', [sic] a New Reptile from the Chalk-marl|journal=Geological Magazine|volume=4|issue=32|pages=65–67|doi=10.1017/S001675680017102X|bibcode=1867GeoM....4...65H|s2cid=128679805 |issn=0016-7568|url=https://zenodo.org/record/2336933}}</ref>
| style="background:#E6E6E6;" | '''''[[Acanthopholis horrida]]'''''{{refn|group=nb|Originally described as ''Acanthopholis horridus''; corrected by Woodward, 1890<ref>{{Cite book|last1=Woodward|first1=A.S.|url=https://www.google.com/books/edition/A_Catalogue_of_British_Fossil_Vertebrata/F2ksAAAAYAAJ?hl=en&gbpv=1&bsq=acanthopholis|title=A Catalogue of British Fossil Vertebrata|last2=Sherborn|first2=C.D.|publisher=Dulau & Company|year=1890|pages=209}}</ref>}}
| style="background:#E6E6E6;" | Huxley
| style="background:#E6E6E6;" | 1867<ref name=Acanthopholis />
| style="background:#E6E6E6;" | GSM{{efn|name=unknown}} 109045-109053, 109055-109057<ref name=Acanthopholis2>{{Cite web|author=Ford, Tracy|title=Untitled Document|url=http://www.paleofile.com/Dinosaurs/Sauropoda/Armor/Acanthopholis.asp|access-date=18 December 2022}}</ref>
| style="background:#E6E6E6;" | [[Chalk Group]]<ref>{{Cite journal|last=Ethbridge|first=R.|date=1867|title=V.—On the Stratigraphical Position of Acanthopholis Horridus (Huxley)|journal=Geological Magazine|volume=4|issue=32|pages=67–69|doi=10.1017/S0016756800171031|bibcode=1867GeoM....4...67E|s2cid=140673032 |issn=0016-7568|url=https://zenodo.org/record/2225947}}</ref>
| style="background:#E6E6E6;" data-sort-value=21 | [[Cenomanian]], [[Late Cretaceous]]<ref name=Acanthopholis2 />
| style="background:#E6E6E6;" | {{flag|United Kingdom}}<br>({{flag|England}})
| style="background:#E6E6E6;" data-sort-value=2 | Dubious<ref>{{Cite journal|last1=Superbiola|first1=X.P.|last2=Barrett|first2=P.M.|date=1999|title=A systematic review of ankylosaurian dinosaur remains from the Albian-Cenomanian of England|journal=Special Papers in Palaeontology|volume=60|pages=177–208}}</ref> 
| style="background:#E6E6E6;" data-sort-value=12 | [[Nodosauridae]]
| style="background:#E6E6E6;" | Possessed keeled oval scutes as well as long spines
| style="background:#E6E6E6;" | [[File:Acanthopholis dermal scutes.JPG|frameless]]
| style="background:#E6E6E6;" | <div style="position:relative;{{mirrorH|display=block}}">[[File:Acanthopholis copia.jpg|frameless]]</div>
| style="background:#E6E6E6;" |
|-
| '''''[[Achelousaurus]]'''''<br/><small>[https://doi.org/10.1080%2F02724634.1994.10011592 Sampson, 1995]</small><ref name=Achelousaurus>{{cite journal|last1=Sampson|first1=S.D.|date=1995|title=Two new horned dinosaurs from the Upper Cretaceous Two Medicine Formation of Montana; with a phylogenetic analysis of the Centrosaurinae (Ornithischia: Ceratopsidae)|journal=Journal of Vertebrate Paleontology|volume=15|issue=4|pages=743–760|doi=10.1080/02724634.1995.10011259}}</ref>
| '''''[[Achelousaurus horneri]]'''''
| Sampson
| 1995<ref name=Achelousaurus />{{refn|group=nb|Although often credited to Sampson (1994),<ref>{{cite journal|last1=Sampson|first1= S. D.|date= 1994|title=Two new horned dinosaurs (Ornithischia: Ceratopsidae) from the Upper Cretaceous Two Medicine Formation, Montana, USA|journal=Journal of Vertebrate Paleontology|volume=14|issue=Suppl. 3|page= 44A|doi=10.1080/02724634.1994.10011592}}</ref> this is a conference abstract, which is not considered a valid avenue for naming a new genus}}
| MOR{{efn|name=mor|[[Museum of the Rockies]], [[Bozeman]], United States}} 485<ref name=Achelousaurus />
| data-sort-value=Two_Medicine_Formation | [[Two Medicine Formation]]
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]<ref>{{cite book |last1=Ryan |first1=M. J. |last2=Eberth |first2=D. A. |last3=Brinkman |first3=D. B. |last4=Currie |first4=P. J. |last5=Tanke |first5=D. H. |year=2010 |pages=141–155 |chapter=A New ''Pachyrhinosaurus''-Like Ceratopsid from the Upper Dinosaur Park Formation (Late Campanian) of Southern Alberta, Canada |title=New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium |editor1-last=Ryan |editor1-first=M. J. |editor2-last=Chinnery-Allgeier |editor2-first=B. J. |editor3-last=Eberth |editor3-first=D. A. |publisher=Indiana University Press |isbn=978-0-253-35358-0}}</ref>
| data-sort-value=United_States_(Montana) | {{flag|United States}}<br>({{flag|Montana}})
| data-sort-value=1 | Valid
| data-sort-value=30 | [[Pachyrhinosaurini]]<ref name=Stellasaurus>{{cite journal |last1=Wilson |first1=John P. |last2=Ryan |first2=Michael J. |last3=Evans |first3=David C. |title=A new, transitional centrosaurine ceratopsid from the Upper Cretaceous Two Medicine Formation of Montana and the evolution of the '''Styracosaurus''-line' dinosaurs |journal=Royal Society Open Science |date=2020 |volume=7 |issue=4 |pages=200284 |doi=10.1098/rsos.200284|pmid=32431910 |pmc=7211873 |bibcode=2020RSOS....700284W |doi-access=free }}</ref>
| Combines long spikes on its frill with a thick nasal boss, possibly an indication of an [[Anagenesis|anagenetic]] transition between pachyrhinosaurins<ref name=Stellasaurus />
| [[File:Achelousaurus holotype (1).jpg|frameless]]
| [[File:Achelousaurus dinosaur.png|frameless]]
|
|-
| '''''[[Acheroraptor]]'''''<br/><small>[https://doi.org/10.1007%2Fs00114-013-1107-5 Evans ''et al.'', 2013]</small><ref name=Acheroraptor>{{Cite journal|last1=Evans|first1=D.C.|last2=Larson|first2=D.W.|last3=Currie|first3=P.J.|date=2013|title=A new dromaeosaurid (Dinosauria: Theropoda) with Asian affinities from the latest Cretaceous of North America|journal=Naturwissenschaften|volume=100|issue=11|pages=1041–9|doi=10.1007/s00114-013-1107-5|pmid=24248432|bibcode=2013NW....100.1041E|s2cid=14978813}}</ref>
| '''''[[Acheroraptor temertyorum]]'''''
| Evans, Larson, & Currie
| 2013<ref name=Acheroraptor />
| ROM{{efn|name=rom|[[Royal Ontario Museum]], [[Toronto]], Canada}} 63777<ref name=Acheroraptor />
| [[Hell Creek Formation]]
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref name=Acheroraptor />
| data-sort-value=United_States_(Montana) | {{flag|United States}}<br>({{flag|Montana}})
| data-sort-value=1 | Valid
| data-sort-value=137 | [[Eudromaeosauria]]<ref>{{Cite journal|url=https://www.tandfonline.com/doi/abs/10.1080/02724634.2021.2010087?journalCode=ujvp20#.YhPHvcpTPBM|doi = 10.1080/02724634.2021.2010087|title = A new hypothesis of eudromaeosaurian evolution: CT scans assist in testing and constructing morphological characters|year = 2022|last1 = Powers|first1 = Mark J.|last2 = Fabbri|first2 = Matteo|last3 = Doschak|first3 = Michael R.|last4 = Bhullar|first4 = Bhart-Anjan S.|last5 = Evans|first5 = David C.|last6 = Norell|first6 = Mark A.|last7 = Currie|first7 = Philip J.|journal = Journal of Vertebrate Paleontology|pages = e2010087|s2cid = 247039404}}</ref>
| One of the geologically youngest dromaeosaurids
| [[File:Holotype ROM 63777.jpg|frameless]]
| [[File:Acheroraptor NT small.jpg|frameless]]
| Skeletal diagram lacks secondary feathers; restoration may appear as a ''Jurassic Park''-styled dinosaur on some devices
|-
| style="background:#E6E6E6;" | '''''[[Achillesaurus]]'''''<br/><small>[https://www.researchgate.net/publication/230817285 Martinelli & Vera, 2007]</small><ref name=Achillesaurus>{{cite journal|last1=Martinelli|first1=A.G.|last2=Vera|first2=E.I.|date=2007|title=''Achillesaurus manazzonei'', a new alvarezsaurid theropod (Dinosauria) from the Late Cretaceous Bajo de la Carpa Formation, Río Negro Province, Argentina|url=https://www.researchgate.net/publication/230817285|journal=Zootaxa|volume=1582|pages=1–17|doi=10.11646/zootaxa.1582.1.1}}</ref>
| style="background:#E6E6E6;" | '''''[[Achillesaurus manazzonei]]'''''
| style="background:#E6E6E6;" | Martinelli & Vera
| style="background:#E6E6E6;" | 2007<ref name=Achillesaurus />
| style="background:#E6E6E6;" | MACN-PV-RN{{efn|[[Bernardino Rivadavia Natural Sciences Argentine Museum|Museo Argentino de Ciencias Naturales "Bernardo Rivadavia"]], Colección Río Negro, [[Buenos Aires]], Argentina}} 1116<ref name=Achillesaurus />
| style="background:#E6E6E6;" | [[Bajo de la Carpa Formation]]
| style="background:#E6E6E6;" data-sort-value=24 | [[Santonian]], [[Late Cretaceous]]<ref name=Achillesaurus />
| style="background:#E6E6E6;" | {{flag|Argentina}}<br>({{flag|Río Negro (Argentina)|name=Río Negro}})
| style="background:#E6E6E6;" data-sort-value=2 | Dubious<ref name=Alnashetri />
| style="background:#E6E6E6;" data-sort-value=121 | [[Alvarezsauridae]]<ref name=Alnashetri>{{Cite journal|last1=Makovicky|first1=P.J.|last2=Apesteguía|first2=S.N.|last3=Gianechini|first3=F.A.|date=2012|title=A New Coelurosaurian Theropod from the La Buitrera Fossil Locality of Río Negro, Argentina|url=https://bioone.org/journals/Fieldiana-Life-and-Earth-Sciences/volume-2012/issue-5/2158-5520-5.1.90/A-New-Coelurosaurian-Theropod-from-the-La-Buitrera-Fossil-Locality/10.3158/2158-5520-5.1.90.full?casa_token=uvo1VWrHLwEAAAAA%3aslpQCx698HtZCbXR2p0SSvPEct4ZsSfdHYVw3QcASNbltZoKg658g9fAWcX2no_WwhAqGOZl|journal=Fieldiana Life and Earth Sciences|volume=5|pages=90–98|doi=10.3158/2158-5520-5.1.90|s2cid=129758444}}</ref>
| style="background:#E6E6E6;" | Potentially synonymous with ''[[Alvarezsaurus]]''<ref name=Alnashetri />
| style="background:#E6E6E6;" |
| style="background:#E6E6E6;" | [[File:Achillesaurus.jpg|frameless]]
| style="background:#E6E6E6;" |
|-
| '''''[[Achillobator]]'''''<br/><small>[https://drive.google.com/open?id=1FtVZYSTmgXXBejYfYDKUIg-giwJXNy39 Perle ''et al.'', 1999]</small><ref name=Achillobator>{{cite journal|last1=Perle|first1=A.|last2=Norell|first2=M. A.|last3=Clark|first3=J. M.|date=1999|title=A new maniraptoran Theropod−Achillobator giganticus (Dromaeosauridae)−from the Upper Cretaceous of Burkhant, Mongolia|journal=Contributions from the Geology and Mineralogy Chair, National Museum of Mongolia|issue=101|pages=1−105|oclc=69865262|url=https://drive.google.com/open?id=1FtVZYSTmgXXBejYfYDKUIg-giwJXNy39}}</ref>
| '''''[[Achillobator giganticus]]'''''
| Perle, Norell, & Clark
| 1999<ref name=Achillobator />
| MNUFR{{efn|[[Mongolian National University]], [[Ulaanbaatar]], Mongolia}}-15<ref name=Achillobator />
| [[Bayan Shireh Formation]]
| data-sort-value=21 | [[Cenomanian]]–[[Santonian]], [[Late Cretaceous]]<ref name=BayanShireh>{{cite journal|last1=Kurumada|first1=Y.|last2=Aoki|first2=S.|last3=Aoki|first3=K.|last4=Kato|first4=D.|last5=Saneyoshi|first5=M.|last6=Tsogtbaatar|first6=K.|last7=Windley|first7=B. F.|last8=Ishigaki|first8=S.|title=Calcite U–Pb age of the Cretaceous vertebrate-bearing Bayn Shire Formation in the Eastern Gobi Desert of Mongolia: usefulness of caliche for age determination|journal=Terra Nova|date=2020|volume=32|issue=4|pages=246–252|doi=10.1111/ter.12456|bibcode=2020TeNov..32..246K|doi-access=free}}</ref>
| {{flag|Mongolia}}<br>({{flag|Dornogovi}})
| data-sort-value=1 | Valid
| data-sort-value=137 | [[Eudromaeosauria]]<ref>{{cite journal|last1=Jasinski|first1=S. E.|last2=Sullivan|first2=R. M.|last3=Dodson|first3=P.|date=2020|title=New Dromaeosaurid Dinosaur (Theropoda, Dromaeosauridae) from New Mexico and Biodiversity of Dromaeosaurids at the end of the Cretaceous|journal=Scientific Reports|volume=10|issue=1|page=5105|doi=10.1038/s41598-020-61480-7|doi-access=free|pmc=7099077|pmid=32218481|bibcode=2020NatSR..10.5105J|issn=2045-2322}}</ref>
| Had short limbs and powerful muscles, suggesting a lack of [[cursoriality]]<ref>{{cite journal|last1=Scott Persons IV|first1=W.|last2=Currie|first2=P. J.|date=2016|title=An approach to scoring cursorial limb proportions in carnivorous dinosaurs and an attempt to account for allometry|journal=Scientific Reports|volume=6|issue=19828|page=19828|bibcode=2016NatSR...619828P|doi=10.1038/srep19828|doi-access=free|pmc=4728391|pmid=26813782}}</ref>
| [[File:Achillobator Skeleton Reconstruction.jpg|frameless]]
| [[File:Achillobator reconstruction.png|frameless]]
|
|-
| '''''[[Acristavus]]'''''<br/><small>[https://doi.org/10.1080%2F02724634.2011.577854 Gates ''et al.'', 2011]</small><ref name=Acristavus>{{cite journal |last=Gates |first=T.A. |author2=Horner, J.R.|author3= Hanna, R.R.|author4= Nelson, C.R. |year=2011 |title=New unadorned hadrosaurine hadrosaurid (Dinosauria, Ornithopoda) from the Campanian of North America |journal=Journal of Vertebrate Paleontology |volume=31 |issue=4 |pages=798–811 |doi=10.1080/02724634.2011.577854 |s2cid=8878474 }}</ref>
| '''''[[Acristavus gagslarsoni]]'''''
| Gates, Horner, Hanna, & Nelson
| 2011<ref name=Acristavus />
| MOR{{efn|name=mor}} 1155<ref name=Acristavus />
| data-sort-value=Two_Medicine_Formation | [[Two Medicine Formation]]{{refn|group=nb|name=holo|Holotype locality}}<br>[[Wahweap Formation]]
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]<ref name=Acristavus />
| data-sort-value=United_States_(Montana) | {{flag|United States}}<br>({{flag|Montana}}{{refn|group=nb|name=holo}}<br>{{flag|Utah}})
| data-sort-value=1 | Valid
| data-sort-value=47 | [[Brachylophosaurini]]<ref>{{Cite journal|author=Prieto-Márquez, A.|year=2014|title=Skeletal morphology of ''Kritosaurus navajovius'' (Dinosauria:Hadrosauridae) from the Late Cretaceous of the North American south-west, with an evaluation of the phylogenetic systematics and biogeography of Kritosaurini|journal=Journal of Systematic Palaeontology|volume=12|issue=2|pages=133-175}}</ref>
| Unusually for a hadrosaurid, it lacked ornamentation on its skull
| [[File:Acristavus Skull.png|frameless]]
| [[File:Acristavus.jpg|frameless]]
| Life restoration is shrinkwrapped around the nose
|-
| '''''[[Acrocanthosaurus]]'''''<br/><small>[https://doi.org/10.2307%2F2421859 Stovall & Langston, 1950]</small><ref name=Acrocanthosaurus>{{cite journal |last=Stovall |first=J. Willis |author2=Langston, Wann |year=1950 |title=''Acrocanthosaurus atokensis'', a new genus and species of Lower Cretaceous Theropoda from Oklahoma |journal=American Midland Naturalist |volume=43 |pages=696–728 |doi=10.2307/2421859 |issue=3 |jstor=2421859}}</ref>
| '''''[[Acrocanthosaurus atokensis]]'''''
| Stovall & Langston
| 1950<ref name=Acrocanthosaurus />
| OMNH{{efn|[[Sam Noble Oklahoma Museum of Natural History]], [[Norman, Oklahoma]], United States}} 10146/10147
| data-sort-value=Antlers_Formation | [[Antlers Formation]]<ref name=Acrocanthosaurus />{{refn|group=nb|name=holo}}<br>[[Arundel Formation]]?<ref name=lipka1998>{{cite book |last=Lipka |first=Thomas R. |year=1998 |chapter=The affinities of the enigmatic theropods of the Arundel Clay facies (Aptian), Potomac Formation, Atlantic Coastal Plain of Maryland |editor=[[Spencer G. Lucas|Lucas, Spencer G.]] |editor2=[[James Kirkland (paleontologist)|Kirkland, James I.]] |editor3=Estep, J.W. |title=Lower and Middle Cretaceous Terrestrial Ecosystems |series=New Mexico Museum of Natural History and Science Bulletin '''14''' |pages=229–234 }}</ref><br>[[Cloverly Formation]]?<ref>{{cite journal |last=D'Emic |first=Michael D. |author2=Melstrom, Keegan M.|author3=Eddy, Drew R. |year=2012 |title=Paleobiology and geographic range of the large-bodied Cretaceous theropod dinosaur ''Acrocanthosaurus atokensis'' |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=333–334 |pages=13–23 |doi=10.1016/j.palaeo.2012.03.003 |bibcode=2012PPP...333...13D }}</ref><br>[[Glen Rose Formation]]?<ref>{{cite book |last=Farlow |first=James O. |chapter=''Acrocanthosaurus'' and the maker of Comanchean large-theropod footprints |editor=[[Darren Tanke|Tanke, Darren]] |editor2=[[Kenneth Carpenter|Carpenter, Ken]] |title=Mesozoic Vertebrate Life |location=Bloomington |publisher=Indiana University Press |pages=[https://archive.org/details/mesozoicvertebra0000unse/page/408 408–427] |isbn=978-0-253-33907-2 |year=2001 |chapter-url=https://archive.org/details/mesozoicvertebra0000unse/page/408 }}</ref><br>[[Twin Mountains Formation]]<ref>{{cite book |last=Harris |first=Jerald D. |year=1998 |chapter=Large, Early Cretaceous theropods in North America |editor=[[Spencer G. Lucas|Lucas, Spencer G.]] |editor2=[[James Kirkland (paleontologist)|Kirkland, James I.]] |editor3=Estep, J.W. |title=Lower and Middle Cretaceous Terrestrial Ecosystems |series=New Mexico Museum of Natural History and Science Bulletin '''14''' |pages=225–228}}</ref>
| data-sort-value=19 | [[Aptian]]–[[Cenomanian]],<ref>{{Cite journal |last=D'Emic |first=Michael D. |last2=Foreman |first2=Brady Z. |last3=Jud |first3=Nathan A. |last4=Britt |first4=Brooks B. |last5=Schmitz |first5=Mark |last6=Crowley |first6=James L. |date=2019-04-01 |title=Chronostratigraphic Revision of the Cloverly Formation (Lower Cretaceous, Western Interior, USA) |url= |journal=Bulletin of the Peabody Museum of Natural History |volume=60 |issue=1 |pages=3 |doi=10.3374/014.060.0101 |issn=0079-032X}}</ref> [[Early Cretaceous|Early]]–[[Late Cretaceous]]
| data-sort-value=United_States_(Oklahoma) | {{flag|United States}}<br>({{flag|Arizona}}?<ref>{{cite book |last=Ratkevich |first=Ronald P. |year=1997 |chapter=Dinosaur remains of southern Arizona |editor=Wolberg, Donald L. |editor2=Stump, Edward |editor3=Rosenberg, Gary |title=Dinofest International: Proceedings of a Symposium Held at Arizona State University |publisher=Academy of Natural Sciences |location=Philadelphia |isbn=978-0-935868-94-4}}</ref><br>{{flag|Maryland}}?<br>{{flag|Oklahoma}}{{refn|group=nb|name=holo}}<br>{{flag|Texas}}?<br>{{flag|Wyoming}})
| data-sort-value=1 | Valid
| data-sort-value=107 | [[Carcharodontosauridae]]<ref>{{cite journal | doi = 10.1016/j.cretres.2013.04.001 | title=Evolution of the carnivorous dinosaurs during the Cretaceous: The evidence from Patagonia | journal=Cretaceous Research | date=2013 | volume=45 | pages=174–215 | first=Fernando E. | last=Novas}}</ref>
| Possessed enlarged vertebral neural spines which may have supported a low sail or hump in life<ref name=Acrocanthosaurus />
| [[File:Acrocanthosaurus skeletons.tif|frameless]]
| [[File:Acrocanthosaurus restoration.jpg|frameless]]
| Feathers on life restoration may be too big
|-
| '''''[[Acrotholus]]'''''<br/><small>[https://doi.org/10.1038%2Fncomms2749 Evans ''et al.'', 2013]</small><ref name=Acrotholus>{{Cite journal|last1=Evans|first1=David C.|last2=Schott|first2=Ryan K.|last3=Larson|first3=Derek W.|last4=Brown|first4=Caleb M.|last5=Ryan|first5=Michael J.|date=2013-05-07|title=The oldest North American pachycephalosaurid and the hidden diversity of small-bodied ornithischian dinosaurs|journal=Nature Communications|language=En|volume=4|pages=1828|doi=10.1038/ncomms2749|pmid=23652016|issn=2041-1723|bibcode=2013NatCo...4.1828E|doi-access=free}}</ref>
| '''''[[Acrotholus audeti]]'''''
| Evans, Schott, Larson, Brown, & Ryan
| 2013<ref name=Acrotholus />
| TMP{{efn|name=tmp|[[Royal Tyrell Museum|Royal Tyrell Museum of Palaeontology]], [[Drumheller]], Canada}} 2008.045.0001; ROM{{efn|name=rom}} 2962<ref name=Acrotholus />
| [[Milk River Formation]]
| data-sort-value=24 | [[Santonian]], [[Late Cretaceous]]<ref name=Acrotholus />
| {{flag|Canada}}<br>({{flag|Alberta}})
| data-sort-value=1 | Valid
| data-sort-value=18 | [[Pachycephalosauria]]<ref name=Acrotholus />
| Had a tall, oval-shaped dome
|
| [[File:Acrotholus NT.jpg|frameless]]
| Legs look somewhat off
|-
| '''''[[Adamantisaurus]]'''''<br/><small>[https://doi.org/10.1111%2Fj.1475-4983.2005.00527.x Santucci & Bertini, 2006]</small><ref name=Adamantisaurus>{{cite journal |first1=R. M. |last1=Santucci |first2=R. J. |last2=Bertini |year=2006 |title=A new titanosaur from western São Paulo State, Upper Cretaceous Bauru Group, south-east Brazil |journal=Palaeontology |volume=49 |issue=1 |pages=59–66 |doi=10.1111/j.1475-4983.2005.00527.x |hdl=11449/33993 |hdl-access=free }}</ref>
| '''''[[Adamantisaurus mezzalirai]]'''''
| Santucci & Bertini
| 2006<ref name=Adamantisaurus />
| MUGEO{{efn|Museo Geológico Valdemar Lefèvre, [[São Paulo]], Brazil}} 1282, 1289, 1295<ref name=Adamantisaurus />
| [[Adamantina Formation]]
| data-sort-value=25 | [[Campanian]]–[[Maastrichtian]]?,<ref>{{cite journal | first1= Stephen L. | last1 = Brusatte | first2 = Carolos R.A. | last2 = Candiero | first3 = Felipe M. | last3 = Simbras | title = The Last Dinosaurs of Brazil: The Bauru Group and its implications for the end of the Cretaceous mass extinction | journal = Anias de Academia Brasileira de Ceincias | volume = 89 | issue = 3 | pages = 1465–1485 | year = 2017 | doi = 10.1590/0001-3765201720160918 | pmid = 28954171 | doi-access = free }}</ref> [[Late Cretaceous]]
| {{flag|Brazil}}<br>({{flag|São Paulo}})
| data-sort-value=1 | Valid
| data-sort-value=83 | [[Titanosauria]]<ref>{{cite journal |first1=E. B. |last1=Machado |first2=L. D. S. |last2=Avilla |first3=W. R. |last3=Nava |first4=D. D. A. |last4=Campos |first5=A. W. A. |last5=Kellner |title=A new titanosaur sauropod from the Late Cretaceous of Brazil |journal=Zootaxa |year=2013 |volume=3701 |issue=3 |pages=301–321 |doi=10.11646/zootaxa.3701.3.1 |pmid=26191585 }}</ref>
| Its vertebrae had a ball-and-socket articulation, indicating a derived position within the Titanosauria<ref name=Adamantisaurus />
|
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Adamantisaurus by Ademar Pereira.JPG|frameless]]</div>
|
|-
| '''''[[Adasaurus]]'''''<br/><small>[https://naturalhistory.si.edu/sites/default/files/media/translated_publications/Barsbold_83_0.pdf Barsbold, 1983]</small><ref name=Adasaurus>{{cite journal|last1=Barsbold|first1=R.|date=1983|title=Хищные динозавры мела Монголии|trans-title=Carnivorous dinosaurs from the Cretaceous of Mongolia|journal=Transactions of the Joint Soviet-Mongolian Paleontological Expedition|volume=19|page=89|url=http://www.geokniga.org/bookfiles/geokniga-hishchnye-dinozavry-mela-mongolii.pdf|language=Russian}} [https://naturalhistory.si.edu/sites/default/files/media/translated_publications/Barsbold_83_0.pdf Translated paper]</ref>
| '''''[[Adasaurus mongoliensis]]'''''
| Barsbold
| 1983<ref name=Adasaurus />
| MPC-D{{efn|name=mpc-d|[[Mongolian Academy of Sciences]], [[Ulaanbaatar]], Mongolia}} 100/20
| [[Nemegt Formation]]
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref name=Alioramusaltai />
| {{flag|Mongolia}}<br>({{flag|Ömnögovi}})
| data-sort-value=1 | Valid
| data-sort-value=137 | [[Eudromaeosauria]]<ref>{{cite journal|last1=Napoli|first1=J. G.|last2=Ruebenstahl|first2=A. A.|last3=Bhullar|first3=B.-A. S.|last4=Turner|first4=A. H.|last5=Norell|first5=M. A.|date=2021|title=A New Dromaeosaurid (Dinosauria: Coelurosauria) from Khulsan, Central Mongolia|url=https://digitallibrary.amnh.org/bitstream/handle/2246/7286/3982.pdf?sequence=1&isAllowed=y|journal=American Museum Novitates|number=3982|pages=1–47|doi=10.1206/3982.1|issn=0003-0082|hdl=2246/7286|hdl-access=free}}</ref>
| Its "sickle claw" was markedly reduced, suggesting it was used with less frequency than other deinonychosaurs<ref>{{cite journal|last1=Kubota|first1=K.|last2=Barsbold|first2=R.|date=2006|title=Reexamination of Adasaurus mongoliensis (Dinosauria: Theropoda) from the Upper Cretaceous Nemegt Formation of Mongolia|journal=Journal of Vertebrate Paleontology|volume=26|issue=supp. 03|page=88A|doi=10.1080/02724634.2006.10010069|s2cid=220413406}}</ref>
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Adasaurus Skull.png|frameless]]</div>
| [[File:Adasaurus Restoration.jpg|frameless]]
| Restoration may appear as a ''Jurassic Park''-styled dinosaur on some devices
|-
| '''''[[Adelolophus]]'''''<br/><small>[https://researchgate.net/publication/290300564_New_Hadrosaurid_Dinosauria_Ornithopoda_specimens_from_the_lower-middle_campanian_wahweap_formation_of_southern_Utah Gates ''et al.'', 2014]</small><ref name=Adelolophus>{{cite book | author1=Terry A. Gates | author2=Zubair Jinnah | author3=Carolyn Levitt | author4=Michael A. Getty | chapter=New hadrosaurid (Dinosauria, Ornithopoda) specimens from the lower-middle Campanian Wahweap Formation of southern Utah | editor1=David A. Eberth | editor2=David C. Evans | title=Hadrosaurs: Proceedings of the International Hadrosaur Symposium | publisher=Indiana University Press | year=2014 | pages=156–173 | isbn=978-0-253-01385-9 | url=https://researchgate.net/publication/290300564_New_Hadrosaurid_Dinosauria_Ornithopoda_specimens_from_the_lower-middle_campanian_wahweap_formation_of_southern_Utah}}</ref>
| '''''[[Adelolophus hutchisoni]]'''''
| Gates, Jinnah, Levitt, & Getty
| 2014<ref name=Adelolophus />
| UCMP{{efn|[[University of California Museum of Paleontology]], [[Berkeley, California]], United States}} 152028<ref name=Adelolophus />
| [[Wahweap Formation]]
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]<ref>{{Cite journal |last=Beveridge |first=Tegan L. |last2=Roberts |first2=Eric M. |last3=Ramezani |first3=Jahandar |last4=Titus |first4=Alan L. |last5=Eaton |first5=Jeffrey G. |last6=Irmis |first6=Randall B. |last7=Sertich |first7=Joseph J. W. |date=2022-04-01 |title=Refined geochronology and revised stratigraphic nomenclature of the Upper Cretaceous Wahweap Formation, Utah, U.S.A. and the age of early Campanian vertebrates from southern Laramidia |url=https://www.sciencedirect.com/science/article/pii/S0031018222000463 |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |language=en |volume=591 |pages=110876 |doi=10.1016/j.palaeo.2022.110876 |issn=0031-0182}}</ref>
| data-sort-value=United_States_(Utah) | {{flag|United States}}<br>({{flag|Utah}})
| data-sort-value=1 | Valid
| data-sort-value=54 | [[Parasaurolophini]]<ref name=Adelolophus2>{{cite journal | url=https://www.sciencedirect.com/science/article/abs/pii/S0195667122001318 | title=Phylogenetic and biogeography analysis of Mexican hadrosauroids | author=Ramírez-Velasco, Angel Alejandro | journal=Cretaceous Research | year=2022 | volume=138 | doi=10.1016/j.cretres.2022.105267}}</ref>
| May have been closely related to ''[[Tlatolophus]]''<ref name=Adelolophus2 />
|
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Adelolophus LM.png|frameless]]</div>
| If a parasaurolophin then its crest may have been more arc-shaped
|-
| '''''[[Adeopapposaurus]]'''''<br/><small>[https://doi.org/10.1671%2F039.029.0102 Martínez, 2009]</small><ref name=Adeopapposaurus>{{cite journal |doi=10.1671/039.029.0102 |last=Martínez |first=Ricardo N. |year=2009 |title=''Adeopapposaurus mognai'', gen. et sp. nov (Dinosauria: Sauropodomorpha), with comments on adaptations of basal sauropodomorpha |journal=Journal of Vertebrate Paleontology |volume=29 |issue=1 |pages=142–164}}</ref>
| '''''[[Adeopapposaurus mognai]]'''''
| Martínez
| 2009<ref name=Adeopapposaurus />
| PVSJ{{efn|Instituto y Museo de Ciencias Naturales, [[National University of San Juan|Universidad Nacional de San Juan]], [[San Juan, Argentina|San Juan]], Argentina}}610<ref name=Adeopapposaurus />
| [[Cañón del Colorado Formation]]
| data-sort-value=4.0 | Indeterminate, [[Early Jurassic]]
| {{flag|Argentina}}<br>({{flag|San Juan}})
| data-sort-value=1 | Valid
| data-sort-value=63 | [[Massospondylidae]]<ref name=Schleitheimia />
| May have had a keratinous beak based on the shape of its jaw bones
| <div style="position:relative;{{mirrorH|display=block}}">[[File:ADEOPAPPOSAURUS ESQUELETO.jpg|frameless]]</div>
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Adeopapposaurus mognai.jpg|frameless]]</div>
| Restoration lacks a keratinous beak
|-
| '''''[[Adratiklit]]'''''<br/><small>[https://doi.org/10.1016%2Fj.gr.2019.07.007 Maidment ''et al.'', 2020]</small><ref name=Adratiklit>{{Cite journal |last=Maidment |first=Susannah C. R. |last2=Raven |first2=Thomas J. |last3=Ouarhache |first3=Driss |last4=Barrett |first4=Paul M. |date=2019-08-16 |title=North Africa's first stegosaur: Implications for Gondwanan thyreophoran dinosaur diversity |journal=Gondwana Research |volume=77 |pages=82–97 |doi=10.1016/j.gr.2019.07.007 |issn=1342-937X |doi-access=free}}</ref>
| '''''[[Adratiklit boulahfa]]'''''
| Maidment, Raven, Ouarhache, & Barrett
| 2020<ref name=Adratiklit />
| NHMUK{{efn|name=nhmuk}} PV R37366<ref name=Adratiklit />
| [[El Mers Group|El Mers II Formation]]
| data-sort-value=10 | [[Bathonian]], [[Middle Jurassic]]<ref name=Adratiklit />
| {{flag|Morocco}}<br>([[Fès-Meknès]])
| data-sort-value=1 | Valid
| data-sort-value=9 | [[Stegosauridae]]<ref name=Adratiklit />
| The oldest known stegosaur; closely related to Late Jurassic European stegosaurs despite its early age<ref name=Adratiklit />
|
| [[File:Adratiklit LM.png|frameless]]
|
|-
| '''''[[Adynomosaurus]]'''''<br/><small>[https://doi.org/10.1016%2Fj.cretres.2018.12.002 Prieto-Márquez ''et al.'', 2019]</small><ref name=Adynomosaurus>{{cite journal |last1=Prieto-Márquez | first1=Albert |last2=Fondevilla |first2=Víctor  |last3=Sellés |first3=Albert G. |last4=Wagner |first4=Jonathan R.|last5=Galobart |first5=Àngel |title=''Adynomosaurus arcanus'', a new lambeosaurine dinosaur from the Late Cretaceous Ibero-Armorican Island of the European Archipelago |journal=Cretaceous Research |volume=96 | year=2019 |pages=19–37 |doi=10.1016/j.cretres.2018.12.002 | s2cid=134582286 }}</ref>
| '''''[[Adynomosaurus arcanus]]'''''
| Prieto-Márquez, Fondevilla, Sellés, Wagner, & Galobart
| 2019<ref name=Adynomosaurus />
| MCD{{efn|name=mcd}} 7125<ref name=Adynomosaurus />
| [[Tremp Group|Conques Formation]]
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref name=Adynomosaurus />
| {{flag|Spain}}<br>({{flag|Catalonia}})
| data-sort-value=1 | Valid
| data-sort-value=51 | [[Lambeosaurinae]]<ref name=Adelolophus2 />
| Possessed a weakly developed shoulder blade with reduced musculature<ref name=Adynomosaurus />
|
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Adynomosaurus LM.png|frameless]]</div>
| Lacks a hoof-like claw on the manus similar to ''Edmontosaurus annectens''
|-
| '''''[[Aegyptosaurus]]'''''<br/><small>[https://www.zobodat.at/pdf/Abhandlungen-Akademie-Bayern_NF_10_0001-0021.pdf Stromer, 1932]</small><ref name=Aegyptosaurus>{{Cite book|author=Stromer, E.|year=1932|title=Ergebnisse der Forschungsreisen Prof. E. Stromers in den Wüsten Ägyptens|chapter=II. Wirbeltierreste der Baharîje-Stufe (unterstes Cenoman). 11. Sauropoda|publisher=Abhandlungen der Bayerischen Akademie der Wissenschaften Mathematisch-naturwissenschaftliche Abteilung, Neue Folge|volume=10|pages=1-21|url=https://www.zobodat.at/pdf/Abhandlungen-Akademie-Bayern_NF_10_0001-0021.pdf}}</ref>
| '''''[[Aegyptosaurus baharijensis]]'''''
| Stromer
| 1932<ref name=Aegyptosaurus />
| 1912VIII61
| [[Bahariya Formation]]
| data-sort-value=21 | [[Cenomanian]], [[Late Cretaceous]]<ref>{{cite journal | url=http://www.wuestenschiff.de/dateien/bahariya.pdf | title=Sequence stratigraphy of the Lower Cenomanian Bahariya Formation, Bahariya Oasis, Western Desert, Egypt | author=Catuneanu O., Khalifa M.A. & Wanas H.A. | journal=Sedimentary Geology | year=2006 | volume=190 | issue=1–4 | pages=121–137 | doi=10.1016/j.sedgeo.2006.05.010}}</ref>
| {{flag|Egypt}}<br>({{flag|Giza|name=Giza Governorate}})
| data-sort-value=1 | Valid
| data-sort-value=83 | [[Titanosauria]]<ref>{{Cite book|author=Paul, G. S.|year=2016|title=The Princeton Field Guide to Dinosaurs|edition=2nd|publisher=Princeton University Press|pages=231}}</ref>
| Its holotype was destroyed in World War II; several fragments have been collected from Egypt and Niger since but their referral to ''Aegyptosaurus'' cannot be confirmed<ref>{{cite journal|authors=Fanti, F., Cau, A., Hassine, M.|year=2014|title=Evidence for titanosauriforms and rebbachisaurids (Dinosauria: Sauropoda) from the Early Cretaceous of Tunisia|journal=Journal of African Earth Sciences|volume=90|pages=1-8|doi=10.1016/j.jafrearsci.2013.10.010}}</ref><ref name=Aegyptosaurus2>{{cite journal|author1= Poropat, S.F.|author2=Frauenfelder, T.G.|author3=Mannion, P.D.|author4=Rigby, S.L.|author5=Pentland, A.H.|author6=Sloan, T.|author7=Elliott, D.A.|title=Sauropod dinosaur teeth from the lower Upper Cretaceous Winton Formation of Queensland, Australia and the global record of early titanosauriforms|journal=Royal Society Open Science|volume=9|pages=220381|url=https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.220381|doi=10.1098/rsos.220381}}</ref>
| [[File:Aegyptosaurus.png|frameless]]
| [[File:Aegyptosaurus LM.png|frameless]]
|
|-
| rowspan="2" | '''''[[Aeolosaurus]]'''''<br/><small>Powell, 1987</small><ref name=Aeolosaurusrionegrinus>{{cite journal | first = Jaime Eduardo | last = Powell | date = 1987 | title = The Late Cretaceous fauna of Los Alamitos, Patagonia, Argentina. Part VI. The titanosaurids. | journal = Revista del Museo Argentino de Siencias Naturales | volume = 3 | pages = 111–142 }}</ref>
| '''''[[Aeolosaurus colhuehuapensis]]'''''
| Casal, Martínez, Luna, Sciutto, & Lamanna
| 2007<ref name=Aeolosauruscolhuehuapensis>{{cite journal | first1 = G. | last1 = Casal | first2 = R. D. | last2 = Martínez | first3 = M. | last3 = Luna | first4 = J. C. | last4 = Sciutto | first5 = M. | last5 = Lamanna | date = 2007 | title = Aeolosaurus colhuehuapensis sp. nov. (Sauropoda, Titanosauria) de la Formación Bajo Barreal, Cretácico Superior de Argentina | trans-title = Aeolosaurus colhuehuapensis sp. nov. (Sauropoda, Titanosauria) from the Bajo Barreal Formation, Upper Cretaceous of Argentina | language = es | journal = Revista Brasileira de Paleontologia | volume = 10 | issue = 1 | pages = 53–62 | doi=10.4072/rbp.2007.1.05 | doi-access = free }}</ref>
| UNPSJB-PV{{efn|[[National University of Patagonia San Juan Bosco|Universidad Nacional de la Patagonia San Juan Bosco]], [[Comodoro Rivadavia]], Argentina}} 959/1; 959/27<ref name=Aeolosauruscolhuehuapensis />
| [[Lago Colhué Huapí Formation]]<ref>{{cite journal|vauthors=Casal GA, Allard JO, Foix N|year=2015|title=Análisis estratigráfico y paleontológico del Cretácico Superior en la Cuenca del Golfo San Jorge: nueva unidad litoestratigráfica para el Grupo Chubut|journal=Revista de la Asociación Geológica Argentina|volume=72|pages=77–95}}</ref>
| data-sort-value=25 | [[Campanian]]–[[Maastrichtian]], [[Late Cretaceous]]
| {{flag|Argentina}}<br>({{flag|Chubut}})
| data-sort-value=1 | Valid
| data-sort-value=83 | [[Titanosauria]]<ref name=Aeolosaurus2>{{cite journal | first1 = Pablo Ariel | last1 = Gallina | first2 = Alejandro | last2 = Otero | year = 2015 | title = Reassessment of ''Laplatasaurus araukanicus'' (Sauropoda: Titanosauria) from the Upper Cretaceous of Patagonia, Argentina | journal = Ameghiniana | volume = 52 | issue = 5 | pages = 487–501 | doi=10.5710/amgh.08.06.2015.2911| s2cid = 131595654 | url = http://naturalis.fcnym.unlp.edu.ar/repositorio/_documentos/sipcyt/bfa005830.pdf }}</ref>
| Only known from twenty-one caudal vertebrae
|
|
|
|-
| '''''[[Aeolosaurus rionegrinus]]'''''
| Powell
| 1987<ref name=Aeolosaurusrionegrinus />
| MJG{{efn|name=unknown}} R-1
| [[Angostura Colorada Formation]]
| data-sort-value=25 | [[Campanian]]–[[Maastrichtian]], [[Late Cretaceous]]
| {{flag|Argentina}}<br>({{flag|Río Negro (Argentina)|name=Río Negro}})
| data-sort-value=1 | Valid
| data-sort-value=83 | [[Titanosauria]]<ref name=Aeolosaurus2 />
| Definitively known from only the holotype; other remains assigned to this genus and/or species cannot be confidently referred
| 
| [[File:Aeolosaurus-rionegrinus-JD-2020-1.png|frameless]]
|
|-
| style="background:#E6E6E6;" | '''''[[Aepisaurus]]'''''<br><small>Gervais, 1852</small><ref name=Aepisaurus>{{cite book|author=Gervais, P|year=1852|title=Zoologie et paléontologie française (animaux vertébrés)|edition=1st|publisher=A. Bertrand|location=Paris|pages=271|lang=French}}</ref> 
| style="background:#E6E6E6;" | '''''[[Aepisaurus elephantinus]]'''''
| style="background:#E6E6E6;" |  Gervais
| style="background:#E6E6E6;" |  1852<ref name=Aepisaurus />
| style="background:#E6E6E6;" | MNHN{{efn|[[Muséum national d'Histoire naturelle]], [[Paris]], France}} 1868-242<ref name=Aepisaurus2>{{cite journal|author=Brignon, A.|year=2018|title=New historical data on the first dinosaurs found in France|journal=BSGF - Earth Sciences Bulletin|volume=189|issue=4|doi=10.1051/bsgf/2018003}}</ref>
| style="background:#E6E6E6;" | [[Grès verts hevétiques|Grès vert]]
| style="background:#E6E6E6;" data-sort-value=20 | [[Albian]], [[Early Cretaceous]]<ref name=Aepisaurus2 />
| style="background:#E6E6E6;" | {{flag|France}}<br>({{flag|Provence-Alpes-Côte d'Azur}})
| style="background:#E6E6E6;" data-sort-value=2 | Dubious<ref name=Abrosaurus2 />
| style="background:#E6E6E6;" data-sort-value=68 | [[Eusauropoda]]<ref name=Aegyptosaurus2 />
| style="background:#E6E6E6;" | The only known humerus shares some features with ''Camarasaurus'' and brachiosaurids<ref>{{Cite book|last1=McIntosh|first1=J.S.|title=The Dinosauria|date=1990|publisher=University of California Press|isbn=9780520067264|editor-last=Osmólska|editor-first=H.|location=Berkeley|pages=345–401|chapter=Sauropoda|oclc=20670312|editor2-last=Dodson|editor2-first=P.|editor3-last=Weishampel|editor3-first=W.B.}}</ref>
| style="background:#E6E6E6;" | [[File:Aepisaurus.JPG|frameless]]
| style="background:#E6E6E6;" |
| style="background:#E6E6E6;" |
|-
| '''''[[Aepyornithomimus]]'''''<br><small>[https://doi.org/10.1038%2Fs41598-017-05272-6 Chinzorig ''et al.'', 2017]</small><ref name=Aepyornithomimus>{{cite journal|last1=Chinzorig|first1=T.|last2=Kobayashi|first2=Y.|last3=Tsogtbaatar|first3=K.|last4=Currie|first4=P. J.|last5=Watabe|first5=M.|last6=Barsbold|first6=R.|date=2017|title=First Ornithomimid (Theropoda, Ornithomimosauria) from the Upper Cretaceous Djadokhta Formation of Tögrögiin Shiree, Mongolia|journal=Scientific Reports|volume=7|issue=5835|bibcode=2017NatSR...7.5835C|doi=10.1038/s41598-017-05272-6|doi-access=free|pmc=5517598|pmid=28724887}}</ref>
| '''''[[Aepyornithomimus tugrikinensis]]'''''
| Chinzorig, Kobayashi, Tsogtbaatar, Currie, Watabe, & Barsbold
| 2017<ref name=Aepyornithomimus />
| MPC-D{{efn|name=mpc-d}} 100/130<ref name=Aepyornithomimus />
| [[Djadochta Formation]]
| data-sort-value=25 | [[Campanian]],<ref name=Djadochta /> [[Late Cretaceous]]
| {{flag|Mongolia}}<br>({{flag|Ömnögovi}})
| data-sort-value=1 | Valid
| data-sort-value=118 | [[Ornithomimidae]]<ref name=Aepyornithomimus />
| Its presence in the Djadochta Formation indicates that ornithomimosaurs could survive in arid environments<ref name=Aepyornithomimus />
| [[File:Aepyornithomimus tugrikinensis.jpg|frameless]]
| [[File:Aepyornithomimus.jpg|frameless]]
| Feathers on life restoration do not match what is known for ornithomimids (e.g. ''Ornithomimus edmontonicus'')
|-
| '''''[[Aerosteon]]'''''<br/><small>[https://doi.org/10.1371%2Fjournal.pone.0003303 Sereno ''et al.'', 2009]</small><ref name=Aerosteon>{{cite journal |author1=Sereno, P.C. |author2=Martinez, R.N. |author3=Wilson, J.A. |author4=Varricchio, D.J. |author5=Alcober, O.A. |author6=Larsson, H.C.E. |year=2008 |title=Evidence for Avian Intrathoracic Air Sacs in a New Predatory Dinosaur from Argentina |journal=PLOS ONE |volume=3 |issue=9 |pages=e3303 |doi=10.1371/journal.pone.0003303 |pmid=18825273 |pmc=2553519 |editor1-last=Kemp |editor1-first=Tom |bibcode=2008PLoSO...3.3303S |doi-access=free }}</ref>
| '''''[[Aerosteon riocoloradensis]]'''''{{refn|group=nb|This name is gramatically incorrect and should be corrected to ''Aerosteon riocoloradense''; although this spelling has appeared on several Internet sites, it has not been used in the literature}}
| Sereno, Martinez, Wilson, Varricchio, Alcober, & Larsson
| 2009<ref name=Aerosteon />{{refn|group=nb|Despite its publication being published online in 2008, the [[ICZN]] did not consider online publications to be valid on that date; it was only corrected the following year, so the correct publishing date should be 2009.<ref name=plosonetaxon>PLoS ONE Group (2009). "[http://www.plosone.org/annotation/listThread.action?inReplyTo=info:doi/10.1371/annotation/50a3bedb-2c02-4b9a-8686-1d496e935d95&root=info:doi/10.1371/annotation/50a3bedb-2c02-4b9a-8686-1d496e935d95 Steps taken to meet the requirements of the ICZN to make new taxonomic names nomenclaturally available.]{{dead link|date=October 2016 |bot=InternetArchiveBot |fix-attempted=yes }}" Comment on Original Article: "Evidence for Avian Intrathoracic Air Sacs in a New Predatory Dinosaur from Argentina." ''PLoS ONE'', May 21, 2009.</ref>}}
| MCNA{{efn|Museo de Ciencias Naturales y Antropológicas (J. C. Moyano) de Mendoza, [[Mendoza, Argentina|Mendoza]], Argentina}}-PV-3137<ref name=Aerosteon />
| [[Anacleto Formation]]<ref name=Aerosteon />{{refn|group=nb|One source identifies it as coming from the [[Plottier Formation]],<ref>{{Cite journal|last1=Novas|first1=F.E.|last2=Agnolin|first2=F.L.|last3=Ezcurra|first3=M.D.|last4=Porfiri|first4=J.|last5=Canale|first5=J.I.|date=October 1, 2013|title=Evolution of the carnivorous dinosaurs during the Cretaceous: The evidence from Patagonia|url=https://www.researchgate.net/publication/259045022|journal=Cretaceous Research|language=en|volume=45|pages=174–215|doi=10.1016/j.cretres.2013.04.001|issn=0195-6671|access-date=May 8, 2018|archive-url=https://web.archive.org/web/20180509012824/https://www.researchgate.net/publication/259045022_Evolution_of_the_carnivorous_dinosaurs_during_the_Cretaceous_The_evidence_from_Patagonia|archive-date=May 9, 2018|url-status=live}}</ref> although this is likely to be a typo}}
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]
| {{flag|Argentina}}<br>({{flag|Mendoza}})
| data-sort-value=1 | Valid
| data-sort-value=102 | [[Megaraptora]]<ref>{{cite journal | first1 = S | last1 = Apesteguía | first2 = N.D. | last2 = Smith | first3 = R.J. | last3 = Valieri | first4 = P.J. | last4 = Makovicky | title = An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina | date = 2016 | journal = PLOS ONE | volume = 11 | issue = 7 | pages = e0157793 | doi = 10.1371/journal.pone.0157793 | pmid = 27410683 | pmc = 4943716 | bibcode = 2016PLoSO..1157793A | doi-access = free }}</ref>
| Its bones were extremely pneumatized, suggesting an air sac system similar to that of modern birds<ref name=Aerosteon />
| [[File:Aerosteon riocoloradensis.jpg|frameless]]
| [[File:Aerosteon BW.jpg|frameless]]
| 
|-
| '''''[[Afromimus]]'''''<br/><small>[https://doi.org/10.5710%2FAMGH.23.10.2017.3155 Sereno, 2017]</small><ref name=Afromimus>{{cite journal |first1=P. |last1=Sereno |year=2017 |title=Early Cretaceous ornithomimosaurs (Dinosauria: Coelurosauria) from Africa |journal=Ameghiniana |volume=54 |issue=5 |pages=576–616 |doi=10.5710/AMGH.23.10.2017.3155|s2cid=134718338 }}</ref>
| '''''[[Afromimus tenerensis]]'''''
| Sereno
| 2017<ref name=Afromimus />
| MNBH{{efn|[[Musée National Boubou Hama]], [[Niamey]], Niger}} GAD112<ref name=Afromimus />
| [[Elrhaz Formation]]
| data-sort-value=19 | [[Aptian]]–[[Albian]],<ref name=Afromimus /> [[Early Cretaceous]]
| {{flag|Niger}}<br>([[Agadez Region]])
| data-sort-value=1 | Valid
| data-sort-value=91 | [[Abelisauroidea]]<ref>{{cite journal |first1=M.A. |last1=Cerroni |first2=F.L. |last2=Agnolin |first3=F. |last3=Brissón Egli |first4=F.E. |last4=Novas |year=2019 |title=The phylogenetic position of ''Afromimus tenerensis'' Sereno, 2017 and its paleobiogeographical implications |journal=Journal of African Earth Sciences |volume=159 |pages=103572 |doi=10.1016/j.jafrearsci.2019.103572|bibcode=2019JAfES.15903572C |s2cid=201352476 }}</ref>
| Originally described as an ornithomimosaur<ref name=Afromimus />
|
| [[File:Afromimus LM.png|frameless]]
|
|-
| '''''[[Afrovenator]]'''''<br><small>[https://doi.org/10.1126%2Fscience.266.5183.267 Sereno ''et al.'', 1994]</small><ref name=Afrovenator>{{Cite journal|last1=Sereno|first1=P.C.|last2=Wilson|first2=J.A.|last3=Larsson|first3=H.C.|last4=Dutheil|first4=D.B.|last5=Sues|first5=H.D.|date=1994|title=Early cretaceous dinosaurs from the Sahara|url=https://eurekamag.com/ftext.php?pdf=008511016|journal=Science|volume=266|issue=5183|pages=267–271|doi=10.1126/science.266.5183.267|pmid=17771449|s2cid=36090994}}</ref>
| '''''[[Afrovenator abakensis]]'''''
| Sereno, Wilson, Larsson, Dutheil, & Sues
| 1994<ref name=Afrovenator />
| UC{{efn|[[University of Chicago]], [[Chicago]], United States}} OBA 1<ref name=Afrovenator />
| [[Tiourarén Formation]]
| data-sort-value=10 | [[Bathonian]]–[[Oxfordian (stage)|Oxfordian]],<ref>{{cite journal | last1 = Rauhut | last2 = Lopez-Arbarello | year = 2009 | title = Considerations on the age of the Tiouaren Formation ([[Iullemmeden Basin]], Niger, Africa): Implications for Gondwanan Mesozoic terrestrial vertebrate faunas | journal = Palaeogeography, Palaeoclimatology, Palaeoecology | volume = 271 | issue = 3–4 | pages = 259–267 | doi = 10.1016/j.palaeo.2008.10.019 }}</ref> [[Middle Jurassic|Middle]]–[[Late Jurassic]]
| {{flag|Niger}}<br>([[Agadez Region]])
| data-sort-value=1 | Valid
| data-sort-value=99 | [[Megalosauridae]]<ref>{{cite journal | last1 = Carrano | first1 = M.T. | last2 = Benson | first2 = R.B.J. | last3 = Sampson | first3 = S.D. | year = 2012 | title = The phylogeny of Tetanurae (Dinosauria: Theropoda) | journal = Journal of Systematic Palaeontology | volume = 10 | issue = 2| pages = 211–300 | doi = 10.1080/14772019.2011.630927 | s2cid = 85354215 }}</ref>
| Originally thought to hail from the Early Cretaceous
| [[File:Afrovenator mount.jpg|frameless]]
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Afrovenator reconstruction.png|frameless]]</div>
|
|-
| style="background:#E6E6E6;" | '''''[[Agathaumas]]'''''<br/><small>[https:/upwiki/wikipedia/commons/9/91/The_Existence_of_Dinosauria_in_the_Transition_Beds_of_Wyoming.pdf Cope, 1872]</small><ref name=Agathaumas>{{cite journal |last=Cope |first=E.D. |year=1872 |title=On the existence of Dinosauria in the Transition Beds of Wyoming |journal=[[Proceedings of the American Philosophical Society]] |volume=12 |pages=481–483 |url=https:/upwiki/wikipedia/commons/9/91/The_Existence_of_Dinosauria_in_the_Transition_Beds_of_Wyoming.pdf}}</ref>
| style="background:#E6E6E6;" | '''''[[Agathaumas sylvestris]]'''''
| style="background:#E6E6E6;" | Cope
| style="background:#E6E6E6;" | 1872<ref name=Agathaumas />
| style="background:#E6E6E6;" | AMNH{{efn|name=amnh|[[American Museum of Natural History]], [[New York City]], United States}} 4000<ref>{{Cite web|author=Ford, Tracy|title=Untitled Document|url=http://www.paleofile.com/Dinosaurs/Ornithopods/Agathaumas.asp|access-date=20 December 2022}}</ref>
| style="background:#E6E6E6;" | [[Lance Formation]]
| style="background:#E6E6E6;" data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]
| style="background:#E6E6E6;" data-sort-value=United_States_(Wyoming) | {{flag|United States}}<br>({{flag|Wyoming}})
| style="background:#E6E6E6;" data-sort-value=2 | Dubious<ref name=Agathaumas2>{{Cite book|author=Hatcher, J. B.|year=1907|url=https://books.google.com/books?hl=en&lr=&id=HbsQAAAAIAAJ&oi=fnd&pg=PR13&dq=Hatcher+Ceratopsia&ots=QRXausJKK_&sig=K2PUjGXS7K-8RXmL198lZymvZzU|title=The Ceratopsia|issue=No. 310|publisher=US Government Printing Office}}</ref>
| style="background:#E6E6E6;" data-sort-value=25 | [[Ceratopsidae]]<ref name=Agathaumas2 />
| style="background:#E6E6E6;" | A well-known painting by Charles Knight is based on remains now thought to belong to multiple taxa<ref>{{cite journal|author=AMNH, Department of Vertebrate Paleontology|year=1904|title=Review List of Casts, Models, and Photographs of fossil Vertebrates|journal=Bulletin of the American Museum of Natural History|volume=20|issue=Supplement}}</ref> 
| style="background:#E6E6E6;" | [[File:Agathaumas sylvestris.jpg|frameless]]
| style="background:#E6E6E6;" |
| style="background:#E6E6E6;" |
|-
| '''''[[Agilisaurus]]'''''<br><small>Peng, 1990</small><ref name=Agilisaurus>{{cite journal | last1 = Peng | first1 = G. | year = 1990 | title = A new small ornithopod (''Agilisaurus louderbacki'' gen. et sp. nov.) from Zigong, China | journal = Newsletter of the Zigong Dinosaur Museum | volume = 2 | pages = 19–27 |language=zh}}</ref>
| '''''[[Agilisaurus louderbacki]]'''''
| Peng
| 1990<ref name=Agilisaurus />
| ZDM{{efn|name=zdm}}T6011<ref name=Abrictosaurus2 />
| [[Shaximiao Formation|Xiashaximiao Formation]]
| data-sort-value=10 | [[Bathonian]]<ref name=Xiashaximiao1 />–[[Oxfordian (stage)|Oxfordian]],<ref name=Xiashaximiao2 /> [[Middle Jurassic|Middle]]–[[Late Jurassic]]
| data-sort-value=China_(Sichuan) | {{flag|China}}<br>([[Sichuan]])
| data-sort-value=1 | Valid
| data-sort-value=15 | [[Neornithischia]]<ref name=Abrictosaurus2 />
| The holotype was discovered during the construction of the Zigong Dinosaur Museum
| [[File:Agilisaurus louderbacki.jpg|frameless]]
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Agilisaurus life restoration.jpg|frameless]]</div>
|
|-
| style="background:#E6E6E6;" | '''''[[Agrosaurus]]'''''<br/><small>[https://wellcomecollection.org/works/jgygkwa7/items Seeley, 1891]</small><ref name=Agrosaurus>{{Cite journal|author=Seeley. H. G.|year=1891|title=On ''Agrosaurus macgillivrayi'' (Seeley), a saurischian reptile from the N.E. coast of Australia|journal=Quarterly Journal of the Geological Society of London|volume=47|pages=164-165|url=https://wellcomecollection.org/works/jgygkwa7/items}}</ref>
| style="background:#E6E6E6;" | '''''[[Agrosaurus macgillivrayi]]'''''
| style="background:#E6E6E6;" | Seeley
| style="background:#E6E6E6;" | 1891<ref name=Agrosaurus />
| style="background:#E6E6E6;" | BMNH{{efn|name=nhmuk}} 49984
| style="background:#E6E6E6;" | [[Magnesian Conglomerate]]<ref>{{Cite web|author=Ford, Tracy|title=Untitled Document|url=http://www.paleofile.com/Dinosaurs/Sauropoda/Thecodontosaurus.asp|access-date=20 December 2022}}</ref>
| style="background:#E6E6E6;" data-sort-value=3 | [[Rhaetian]], [[Late Triassic]]
| style="background:#E6E6E6;" | {{flag|United Kingdom}}<br>({{flag|England}})
| style="background:#E6E6E6;" data-sort-value=2 | Dubious
| style="background:#E6E6E6;" data-sort-value=58 | [[Sauropodomorpha]]
| style="background:#E6E6E6;" | Originally thought to be from Australia,<ref>{{Cite journal|last=Vickers-Rich|first=Patricia|date=1999|title=Is ''Agrosaurus macgillivrayi'' Australia's oldest dinosaur?|url=https://museum.wa.gov.au/sites/default/files/15.%20Vickers-Rich,%20Rich,%20McNamara,%20Milner.pdf|journal=Records of the Western Australian Museum|volume=57|pages=191–200}}</ref> although it is probably a misidentified ''[[Thecodontosaurus]]'' from England
| style="background:#E6E6E6;" |
| style="background:#E6E6E6;" |
| style="background:#E6E6E6;" |
|-
| rowspan="2" | '''''[[Agujaceratops]]'''''<br/><small>[http://www.dinochecker.com/papers/Re-evaluation_of_%20Pentaceratops_and_Chasmosaurus_Lucas_et_al_2006.pdf Lucas ''et al.'', 2006]</small><ref name=Agujaceratopsmariscalensis>{{cite journal |last1=Lucas |first1=S.G. |last2=Sullivan |first2=R.M. |last3=Hunt |first3=A.P. |title=Re-evaluation of Pentaceratops and Chasmosaurus (Ornithischia: Ceratopsidae) in the Upper Cretaceous of the Western Interior |journal=New Mexico Museum of Natural History |date=2006 |volume=35 |pages=367–370 |url=http://www.dinochecker.com/papers/Re-evaluation_of_%20Pentaceratops_and_Chasmosaurus_Lucas_et_al_2006.pdf}}</ref>
| '''''[[Agujaceratops mariscalensis]]'''''
| data-sort-value=Lucas,_Sullivan,_&_Hunt | Lucas, Sullivan, & Hunt (Lehman)
| data-sort-value=2006 | 2006<ref name=Agujaceratopsmariscalensis /> (1989)<ref>{{Cite journal | doi = 10.1080/02724634.1989.10011749| title = ''Chasmosaurus mariscalensis'', sp. Nov., a new ceratopsian dinosaur from Texas| journal = Journal of Vertebrate Paleontology| volume = 9| issue = 2| pages = 137–162| year = 1989| last1 = Lehman | first1 = T. M. }}</ref>{{refn|group=nb|as ''Chasmosaurus mariscalensis''}}
| UTEP{{efn|[[University of Texas at El Paso]], [[El Paso]], United States}} P.37.7.086<ref name=Agujaceratopsmariscalensis />
| [[Aguja Formation]]
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]<ref name=Agujaceratopsmariscalensis2>{{Cite journal|last=Fowler|first=Denver Warwick|date=2017-11-22|title=Revised geochronology, correlation, and dinosaur stratigraphic ranges of the Santonian-Maastrichtian (Late Cretaceous) formations of the Western Interior of North America|journal=PLOS ONE|volume=12|issue=11|pages=e0188426|doi=10.1371/journal.pone.0188426|issn=1932-6203|pmc=5699823|pmid=29166406|bibcode=2017PLoSO..1288426F|doi-access=free}}</ref>
| data-sort-value=United_States_(Texas) | {{flag|United States}}<br>({{flag|Texas}})
| data-sort-value=1 | Valid
| data-sort-value=26 | [[Chasmosaurinae]]<ref name=Agujaceratopsmavericus />
| More similar to ''Pentaceratops'' than species of ''Chasmosaurus'', supporting its referral to a unique genus<ref name=Agujaceratopsmariscalensis />
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Agujaceratops.jpg|frameless]]</div>
| [[File:Agujaceratops life restoration flipped.jpg|frameless]]
|
|-
| '''''[[Agujaceratops mavericus]]'''''
| Lehman, Wick, & Barnes
| 2016<ref name=Agujaceratopsmavericus>{{cite journal |first1=T.M. |last1=Lehman |first2=S.L. |last2=Wick |first3=K.R. |last3=Barnes |year=2016 |title=New specimens of horned dinosaurs from the Aguja Formation of West Texas, and a revision of ''Agujaceratops'' |journal=Journal of Systematic Palaeontology |volume=15 |issue=8 |pages=641–674 |doi=10.1080/14772019.2016.1210683 |s2cid=88907183 }}</ref>
| TMM{{efn|Vertebrate Paleontology Laboratory, [[Jackson School of Geosciences]] (formerly [[Texas Memorial Museum]]), [[Austin]], United States}} 43098-1<ref name=Agujaceratopsmavericus />
| [[Aguja Formation]]
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]<ref name=Agujaceratopsmariscalensis2 />
| data-sort-value=United_States_(Texas) | {{flag|United States}}<br>({{flag|Texas}})
| data-sort-value=1 | Valid
| data-sort-value=26 | [[Chasmosaurinae]]<ref name=Agujaceratopsmavericus />
| Recovered from inland floodplain deposits, in contrast to ''A. mariscalensis'' which is known from coastal deposits, suggesting a difference in ecology<ref name=Agujaceratopsmavericus />
|
|
|
|-
| '''''[[Agustinia]]'''''<br/><small>[http://www.museocivico.rovereto.tn.it/UploadDocs/3312_Bonaparte_1999b.pdf Bonaparte, 1999]</small><ref name=Agustinia>{{Cite book|author=Bonaparte, J.F.|year=1999|url=http://www.museocivico.rovereto.tn.it/UploadDocs/3312_Bonaparte_1999b.pdf|chapter=An armoured sauropod from the Aptian of northern Patagonia, Argentina|editor=Tomida, Y., Rich, T. H. & Vickers-Rich, P.|title=Proceedings of the Second Gondwanan Dinosaur Symposium|location=Tokyo|publisher=National Science Museum Monographs|issue=15|pages=1–12}}</ref>
| '''''[[Agustinia ligabuei]]'''''
| Bonaparte
| 1999<ref name=Agustinia />
| MCF-PVPH{{efn|[[Museo Carmen Funes]], [[Plaza Huincul]], Argentina}}-110<ref name=Agustinia />
| [[Lohan Cura Formation]]
| data-sort-value=19 | [[Aptian]], [[Early Cretaceous]]<ref name=Agustinia />
| {{flag|Argentina}}<br>({{flag|Neuquén}})
| data-sort-value=1 | Valid
| data-sort-value=72 | [[Rebbachisauridae]]<ref>{{cite journal|author1=Bellardini, F. |author2=Coria, R. A. |author3=Windholz, G. J. |author4=Martinelli, A. G. |author5=Baiano, M. A. |name-list-style=amp |title=Revisiting the Early Cretaceous sauropod ''Agustinia ligabuei'' (Dinosauria: Diplodocoidea) from southern Neuquén Basin (Patagonia, Argentina), with implications on the early evolution of rebbachisaurids |journal=Historical Biology: An International Journal of Paleobiology |year=2022 |doi=10.1080/08912963.2022.2142911 }}</ref>
| Originally described as having long, stegosaur-like spikes, but these turned out to be misidentifications of other bones<ref>{{cite journal | first1 = F. | last1 = Bellardini | first2 = I.A. | last2 = Cerda |name-list-style=amp | journal = The Science of Nature | title = Bone histology sheds light on the nature of the "dermal armor" of the enigmatic sauropod dinosaur ''Agustinia ligabuei'' Bonaparte, 1999 | volume = 104  | issue = 1 | date = 2017 | doi = 10.1007/s00114-016-1423-7 | pmid = 27942797 }}</ref>
|
|
|
|-
| '''''[[Ahshislepelta]]'''''<br/><small>[https://www.researchgate.net/publication/274309967 Burns & Sullivan, 2011]</small><ref name=Ahshislepelta>{{cite journal |author=Michael E. Burns |author2=Robert M. Sullivan |name-list-style=amp |year=2011 |title=A new ankylosaurid from the Upper Cretaceous Kirtland Formation, San Juan Basin, with comments on the diversity of ankylosaurids in New Mexico |url=https://www.researchgate.net/publication/274309967 |journal=Fossil Record 3. New Mexico Museum of Natural History and Science, Bulletin |volume=53 |pages=169–178 }}</ref>
| '''''[[Ahshislepelta minor]]'''''
| Burns & Sullivan
| 2011<ref name=Ahshislepelta />
| SMP{{efn|[[State Museum of Pennsylvania]], [[Harrisburg, Pennsylvania]], United States}} VP-1930<ref name=Ahshislepelta />
| [[Kirtland Formation]]
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]<ref name=Ahshislepelta />
| data-sort-value=United_States_(New_Mexico) | {{flag|United States}}<br>({{flag|New Mexico}})
| data-sort-value=1 | Valid
| data-sort-value=10 | [[Ankylosauria]]<ref name=Acantholipan /><ref name=Akainacephalus />
| Disputed to be either an ankylosaurid or a nodosaurid
| 
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Ahshislepelta LM.png|frameless]]</div>
| Restoration seems to favor a nodosaurid identity
|-
| '''''[[Ajkaceratops]]'''''<br/><small>[https://doi.org/10.1038%2Fnature09019 Ősi ''et al.'', 2010]</small><ref name=Ajkaceratops>{{Cite journal | last = Ősi | first = Attila |author2= Butler, R.J.|author3= Weishampel, David B.| title = A Late Cretaceous ceratopsian dinosaur from Europe with Asian affinities| journal = Nature | volume = 465 | issue = 7297 | pages = 466–468| date = 2010-05-27 | pmid = 20505726| doi = 10.1038/nature09019| bibcode = 2010Natur.465..466O | s2cid = 205220451 }}</ref>
| '''''[[Ajkaceratops kozmai]]'''''
| Ősi, Butler, & Weishampel
| 2010<ref name=Ajkaceratops />
| MTM{{efn|[[Hungarian Natural History Museum|Magyar Természettudományi Múzeum]], [[Budapest]], Hungary}} V2009.192.1<ref name=Ajkaceratops />
| [[Csehbánya Formation]]
| data-sort-value=24 | [[Santonian]], [[Late Cretaceous]]<ref name=Ajkaceratops />
| {{flag|Hungary}}<br>({{flag|Veszprém County}})
| data-sort-value=1 | Valid
| data-sort-value=21 | [[Neoceratopsia]]<ref name=Ajkaceratops />
| Its ancestors may have migrated from Asia via island-hopping<ref name=Ajkaceratops />
| [[File:Ajkaceratops holotipo.jpg|frameless]]
| [[File:Ajkaceratops NT.jpg|frameless]]
|
|-
| '''''[[Ajnabia]]'''''<br/><small>[https://www.sciencedirect.com/science/article/abs/pii/S0195667120303657 Longrich ''et al.'', 2021]</small><ref name=Ajnabia>{{cite journal | url=https://www.sciencedirect.com/science/article/abs/pii/S0195667120303657 | title=The first duckbill dinosaur (Hadrosauridae: Lambeosaurinae) from Africa and the role of oceanic dispersal in dinosaur biogeography | last1=Longrich | first1=Nicholas R. | last2=Suberbiola | first2=Xabier Pereda | last3=Pyron | first3=R. Alexander | last4=Jalil | first4=Nour-Eddine | journal=Cretaceous Research | year=2021 | volume=120 | page=104678 | doi=10.1016/j.cretres.2020.104678| s2cid=228807024 }}</ref>
| '''''[[Ajnabia odysseus]]'''''
| Longrich, Suberbiola, Pyron, & Jalil
| 2021<ref name=Ajnabia />
| MHNM{{efn|Marrakech Museum of Natural History, [[Marrakech]], Morocco}}.KHG.222<ref name=Ajnabia />
| [[Ouled Abdoun Basin]]
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref name=Ajnabia />
| {{flag|Morocco}}<br>([[Béni Mellal-Khénifra]])
| data-sort-value=1 | Valid
| data-sort-value=51 | [[Lambeosaurinae]]<ref name=Ajnabia />
| The first hadrosaurid known from Africa; closely related to European forms<ref name=Ajnabia />
| [[File:Ajnabia odysseus maxilla by Nick Longrich.jpg|frameless]]
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Xenodens & Ajnabia.jpg|frameless]]</div>
|
|-
| '''''[[Akainacephalus]]'''''<br/><small>[https://doi.org/10.7717%2Fpeerj.5016 Wiersma & Irmis, 2018]</small><ref name=Akainacephalus>{{Cite journal|author1=Jelle P. Wiersma |author2=Randall B. Irmis |year=2018 |title=A new southern Laramidian ankylosaurid, ''Akainacephalus johnsoni'' gen. et sp. nov., from the upper Campanian Kaiparowits Formation of southern Utah, USA |journal=PeerJ |volume=6 |pages=e5016 |doi=10.7717/peerj.5016 |pmc=6063217 |pmid=30065856}}</ref>
| '''''[[Akainacephalus johnsoni]]'''''
| Wiersma & Irmis
| 2018<ref name=Akainacephalus />
| UMNH{{efn|[[Natural History Museum of Utah]], [[Salt Lake City]], United States}} VP 20202<ref name=Akainacephalus />
| [[Kaiparowits Formation]]
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]<ref name=Akainacephalus />
| data-sort-value=United_States_(Utah) | {{flag|United States}}<br>({{flag|Utah}})
| data-sort-value=1 | Valid
| data-sort-value=14 | [[Ankylosaurinae]]<ref name=Akainacephalus />
| A majority of the skeleton is known, including the entire skull
| [[File:Akainacephalus reconstructions.png|frameless]]
| [[File:Akainacephalus johnsoni Wikipedia Juandertal.jpg|frameless]]
| Rump of life restoration may be too sloping
|-
| '''''[[Alamosaurus]]'''''<br/><small>[https:/upwiki/wikipedia/commons/6/64/A_new_sauropod_dinosaur_from_the_Ojo_Alamo_Formation_of_New_Mexico.pdf Gilmore, 1922]</small><ref name=Alamosaurus>{{cite journal | last1 = Gilmore | first1 = C.W. | year = 1922 | title = A new sauropod dinosaur from the Ojo Alamo Formation of New Mexico | journal = Smithsonian Miscellaneous Collections | volume = 72 | issue = 14| pages = 1–9 |url=https:/upwiki/wikipedia/commons/6/64/A_new_sauropod_dinosaur_from_the_Ojo_Alamo_Formation_of_New_Mexico.pdf }}</ref>
| '''''[[Alamosaurus sanjuanensis]]'''''
| Gilmore
| 1922<ref name=Alamosaurus />
| USNM{{efn|[[National Museum of Natural History]], [[Washington, D.C.]], United States}} 10486/10487<ref name=Alamosaurus />
| data-sort-value=Ojo_Alamo_Formation | [[Black Peaks Formation]]<ref name=Alamosaurus2>{{Cite book|last1=Upchurch|first1=P.|title=The Dinosauria|last2=Barrett|first2=P.M.|last3=Dodson|first3=P.|date=2004|publisher=University of California Press|isbn=9780520941434|editor-last=Dodson|editor-first=P.|edition=2nd|location=Berkeley, California|chapter=Dinosaur distribution|oclc=801843269|editor2-last=Osmólska|editor2-first=H.|editor3-last=Weishampel|editor3-first=D.B.}}</ref><br>[[El Picacho Formation]]<ref name=Alamosaurus2/><br>[[Evanston Formation]]?<ref>{{Cite journal|title = Alamosaurus and the Sauropod Hiatus in the Cretaceous of the North American Western Interior|last = Lucas and Hunt|first = Spencer G. and Adrian P.|date = 1989|journal = Paleobiology of the Dinosaurs|series = Geological Society of America Special Papers|volume = 238|doi = 10.1130/SPE238-p75|issue = 238|pages = 75–86|isbn = 0-8137-2238-1|editor-last = Farlow|editor-first = James O.}}</ref><br>[[Javelina Formation]]<ref name=Alamosaurus2/><br>[[North Horn Formation]]<ref name=Alamosaurus2/><br>[[Ojo Alamo Formation]]<ref name=Alamosaurus/>{{refn|group=nb|name=holo}}{{refn|group=nb|Ojo Alamo record may belong to the [[Kirtland Formation]] under another definition}}
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref>{{cite journal | last1 = Lehman | first1 = T. M. | last2 = Mcdowell | first2 = F. W. | last3 = Connelly | first3 = J. N. | year = 2006 | title = First isotopic (U-Pb) age for the Late Cretaceous ''Alamosaurus'' vertebrate fauna of West Texas, and its significance as a link between two faunal provinces | journal = Journal of Vertebrate Paleontology | volume = 26 | issue = 4| pages = 922–928 | doi=10.1671/0272-4634(2006)26[922:fiuaft]2.0.co;2| s2cid = 130280606 }}</ref>
| data-sort-value=United_States_(New_Mexico) | {{flag|United States}}<br>({{flag|New Mexico}}{{refn|group=nb|name=holo}}<br>{{flag|Utah}}<br>{{flag|Texas}}<br>{{flag|Wyoming}}?)
| data-sort-value=1 | Valid
| data-sort-value=83 | [[Titanosauria]]<ref>{{cite journal|doi=10.1080/14772019.2016.1183150 | title=An articulated cervical series of ''Alamosaurus sanjuanensis'' Gilmore, 1922 (Dinosauria, Sauropoda) from Texas: new perspective on the relationships of North America's last giant sauropod | journal=Journal of Systematic Palaeontology | year=2017 | pages=1–26| doi-access=free | last1=Tykoski | first1=Ronald S. | last2=Fiorillo | first2=Anthony R. | volume=15 | issue=5 }}</ref>
| The largest dinosaur known from North America, comparable in size to South American titanosaurs<ref>{{Cite journal | doi = 10.4202/app.2010.0105| title = The First Giant Titanosaurian Sauropod from the Upper Cretaceous of North America| journal = Acta Palaeontologica Polonica| volume = 56| issue = 4| pages = 685| year = 2011| last1 = Fowler | first1 = D. W. | last2 = Sullivan | first2 = R. M. | citeseerx = 10.1.1.694.3759| s2cid = 53126360}}</ref>
| [[File:Perot Museum Alamosaurus and Tyrannosaurus.jpg|frameless]]
| [[File:Alamosaurus-sanjuanensis.jpg|frameless]]
|
|-
| '''''[[Alaskacephale]]'''''<br/><small>[https://www.researchgate.net/publication/240625747_A_taxonomic_review_of_the_Pachycephalosauridae_Dinosauria_Ornithischia Sullivan, 2006]</small><ref name=Alaskacephale>{{Cite journal | last = Sullivan | first =RM
| title = A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia) | journal = New Mexico Museum of Natural History and Science Bulletin | year = 2006 | issue = 35 | pages = 347–365 | url = https://www.researchgate.net/publication/240625747_A_taxonomic_review_of_the_Pachycephalosauridae_Dinosauria_Ornithischia}}</ref>
| '''''[[Alaskacephale gangloffi]]'''''
| Sullivan
| 2006<ref name=Alaskacephale />
| UAMAK{{efn|[[University of Alaska Museum]], [[Fairbanks]], United States}}-493-V-001<ref name=Alaskacephale />
| [[Prince Creek Formation]]
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref>{{Citation|last1=Flaig|first1=Peter P.|title=A Tidally Influenced, High-Latitude Coastal-Plain: The Upper Cretaceous (Maastrichtian) Prince Creek Formation, North Slope, Alaska|date=2011|url=https://www.researchgate.net/publication/236585465|work=From River to Rock Record: The preservation of fluvial sediments and their subsequent interpretation|publisher=SEPM Society for Sedimentary Geology|language=en|doi=10.2110/sepmsp.097.233|isbn=978-1-56576-305-0|access-date=2020-10-13|last2=Mccarthy|first2=Paul J.|last3=Fiorillo|first3=Anthony R.}}</ref>
| data-sort-value=United_States_(Alaska) | {{flag|United States}}<br>({{flag|Alaska}})
| data-sort-value=1 | Valid
| data-sort-value=18 | [[Pachycephalosauria]]<ref>{{cite journal | url=https://cdnsciencepub.com/doi/full/10.1139/cjes-2020-0190 | title=Description and revised diagnosis of Asia's first recorded pachycephalosaurid, ''Sinocephale bexelli'' gen. nov., from the Upper Cretaceous of Inner Mongolia, China | last1=Evans | first1=David | last2=Brown | first2=Caleb M. | last3=You | first3=Hailu | last4=Campione | first4=Nicolás E. | journal=Canadian Journal of Earth Sciences | year=2021 | volume=58 | issue=10 | pages=981–992 | doi=10.1139/cjes-2020-0190| bibcode=2021CaJES..58..981E | s2cid=244227050 }}</ref>
| Had a characteristic array of polygonal nodes on its [[squamosal]]
| 
| [[File:Alaskacephale gangloffi copia.jpg|frameless]]
| Ossified tendons mean tail probably could not be raised that high
|-
| '''''[[Albalophosaurus]]'''''<br/><small>[https://doi.org/10.1671%2F039.029.0306 Ohashi & Barrett, 2009]</small><ref name=Albalophosaurus>{{cite journal |doi=10.1671/039.029.0306 |last=Ohashi |first=T. |author2=Barrett, P. M. |year=2009 |title=A new ornithischian dinosaur from the Lower Cretaceous Kuwajima Formation of Japan |journal=Journal of Vertebrate Paleontology |volume=29 |issue=3 |pages=748–757|s2cid=128546047 }}</ref>
| '''''[[Albalophosaurus yamaguchiorum]]'''''
| Ohashi & Barrett
| 2009<ref name=Albalophosaurus />
| SBEI{{efn|Shiramine Board of Education, [[Ishikawa Prefecture]], Japan}} 176<ref name=Albalophosaurus />
| [[Kuwajima Formation]]
| data-sort-value=16 | [[Valanginian]]–[[Hauterivian]], [[Early Cretaceous]]<ref name=Albalophosaurus />
| {{flag|Japan}}<br>({{flag|Ishikawa Prefecture}})
| data-sort-value=1 | Valid
| data-sort-value=19 | [[Ceratopsia]]<ref>{{cite journal |last=Han |first=Feng-Lu |author2=Paul M. Barrett|author3=Richard J. Butler|author4=Xing Xu |year=2012 |title=Postcranial anatomy of ''Jeholosaurus shangyuanensis'' (Dinosauria, Ornithischia) from the Lower Cretaceous Yixian Formation of China. |journal=Journal of Vertebrate Paleontology |volume=32 |issue=6 |pages=1370–1395 |doi=10.1080/02724634.2012.694385 |s2cid=86754247 }}</ref>
| Only known from fragments of a skull
| 
| [[File:Albalophosaurus LM.png|frameless]]
|
|-
| '''''[[Albertaceratops]]'''''<br/><small>[https://doi.org/10.1666%2F0022-3360%282007%2981%5B376%3AANBCCF%5D2.0.CO%3B2 Ryan, 2007]</small><ref name=Albertaceratops>{{cite journal |doi=10.1666/0022-3360(2007)81[376:ANBCCF]2.0.CO;2|issn=0022-3360|year=2007|volume=81|issue=2|pages=376–396|title=A New Basal Centrosaurine Ceratopsid from the Oldman Formation, Southeastern Alberta|journal=Journal of Paleontology|last1=Ryan|first1=Michael J.|s2cid=130607301 }}</ref>
| '''''[[Albertaceratops nesmoi]]'''''
| Ryan
| 2007<ref name=Albertaceratops />
| TMP{{efn|name=tmp}} 2001.26.1<ref name=Albertaceratops />
| [[Oldman Formation]]
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]<ref name=Albertadromeus />
| {{flag|Canada}}<br>({{flag|Alberta}})
| data-sort-value=1 | Valid
| data-sort-value=27 | [[Centrosaurinae]]<ref>{{Cite journal|author1=Kentaro Chiba |author2=Michael J. Ryan |author3=Federico Fanti |author4=Mark A. Loewen |author5=David C. Evans |year=2018 |title=New material and systematic re-evaluation of ''Medusaceratops lokii'' (Dinosauria, Ceratopsidae) from the Judith River Formation (Campanian, Montana) |journal=Journal of Paleontology |volume=92 |issue= 2|pages= 272–288|doi=10.1017/jpa.2017.62 |s2cid=134031275 }}</ref>
| Unusually for a centrosaurine, it possessed elongated brow horns
| [[File:Albertaceratops nesmoi skull by Nick Longrich.jpg|frameless]]
| [[File:Albertaceratops BW.jpg|frameless]]
| Topmost epiparietals on life restoration may be too small
|-
| '''''[[Albertadromeus]]'''''<br/><small>[https://doi.org/10.1080%2F02724634.2013.746229 Brown ''et al.'', 2013]</small><ref name=Albertadromeus>{{Cite journal | last1 = Brown | first1 = C. M. | last2 = Evans | first2 = D. C. | last3 = Ryan | first3 = M. J. | last4 = Russell | first4 = A. P. | title = New data on the diversity and abundance of small-bodied ornithopods (Dinosauria, Ornithischia) from the Belly River Group (Campanian) of Alberta | doi = 10.1080/02724634.2013.746229 | journal = Journal of Vertebrate Paleontology | volume = 33 | issue = 3 | pages = 495 | year = 2013 | s2cid = 129160518 }}</ref>
| '''''[[Albertadromeus syntarsus]]'''''
| Brown, Evans, Ryan, & Russell
| 2013<ref name=Albertadromeus />
| TMP{{efn|name=tmp}} 2009.037.0044<ref name=Albertadromeus />
| [[Oldman Formation]]
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]<ref name=Albertadromeus />
| {{flag|Canada}}<br>({{flag|Alberta}})
| data-sort-value=1 | Valid
| data-sort-value=34 | [[Orodrominae]]<ref name=Albertadromeus />
| May have had a cursorial lifestyle<ref name=Albertadromeus />
|
| [[File:Albertadromeus LM.png|frameless]]
| Lacks feathers as known from other small-bodies ornithischians (e.g. ''Kulindadromeus'')
|-
| '''''[[Albertavenator]]'''''<br/><small>[http://osf.io/b8mqe/ Evans ''et al.'', 2017]</small><ref name=Albertavenator>{{cite journal |first1=D.C. |last1=Evans |first2=T.M. |last2=Cullen |first3=D.W. |last3=Larson |first4=A. |last4=Rego |year=2017 |title=A new species of troodontid theropod (Dinosauria: Maniraptora) from the Horseshoe Canyon Formation (Maastrichtian) of Alberta, Canada |journal=Canadian Journal of Earth Sciences |volume=54 |issue=8 |pages=813–826 |doi=10.1139/cjes-2017-0034|bibcode=2017CaJES..54..813E |url=http://osf.io/b8mqe/ }}</ref>
| '''''[[Albertavenator curriei]]'''''
| Evans, Cullen, Larson, & Rego
| 2017<ref name=Albertavenator />
| TMP{{efn|name=tmp}} 1993.105.0001<ref name=Albertavenator />
| [[Horseshoe Canyon Formation]]
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref name=HorseshoeCanyon>{{cite journal | url=https://www.nrcresearchpress.com/doi/abs/10.1139/cjes-2019-0019#.XuGwP-fQ_BV | title=High-precision U-Pb CA-ID-TIMS dating and chronostratigraphy of the dinosaur-rich Horseshoe Canyon Formation (Upper Cretaceous, Campanian–Maastrichtian), Red Deer River valley, Alberta, Canada | last1=Eberth | first1=David A. | last2=Kamo | first2=Sandra | journal=Canadian Journal of Earth Sciences | year=2019 | volume=57 | issue=10 | pages=1220–1237 | doi=10.1139/cjes-2019-0019| s2cid=210299227 }}</ref>
| {{flag|Canada}}<br>({{flag|Alberta}})
| data-sort-value=1 | Valid
| data-sort-value=134 | [[Troodontidae]]<ref name=Albertavenator />
| Its discovery suggests that the diversity of smaller dinosaurs may be higher than previously thought
| [[File:Albertavenator.png|frameless]]
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Albertavenator LM.png|frameless]]</div>
|
|-
| '''''[[Albertonykus]]'''''<br/><small>[https://doi.org/10.1016%2Fj.cretres.2008.07.005 Longrich & Currie, 2009]</small><ref name=Albertonykus>{{cite journal |last=Longrich |first=Nicholas R. |author2=Currie, Philip J. |year=2009 |title=''Albertonykus borealis'', a new alvarezsaur (Dinosauria: Theropoda) from the Early Maastrichtian of Alberta, Canada: Implications for the systematics and ecology of the Alvarezsauridae |journal=Cretaceous Research |volume=30 |issue=1 |pages= 239–252|doi=10.1016/j.cretres.2008.07.005 }}</ref>
| '''''[[Albertonykus borealis]]'''''
| Longrich & Currie
| 2009<ref name=Albertonykus />
| TMP{{efn|name=tmp}} 2001.45.91<ref name=Albertonykus />
| [[Horseshoe Canyon Formation]]
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref name=HorseshoeCanyon />
| {{flag|Canada}}<br>({{flag|Alberta}})
| data-sort-value=1 | Valid
| data-sort-value=121 | [[Alvarezsauridae]]<ref name=Albertonykus />
| May have preyed on wood-boring termites, as fossil wood from the type locality frequently contains borings<ref name=Albertonykus />
|
| [[File:Albertonykus borealis.jpg|frameless]]
| May need to be more muscular at the tail base
|-
| '''''[[Albertosaurus]]'''''<br/><small>[https://digitallibrary.amnh.org/bitstream/handle/2246/1464//v2/dspace/ingest/pdfSource/bul/B021a14.pdf?sequence=1&isAllowed=y Osborn, 1905]</small><ref name=Albertosaurus>{{cite journal |last=Osborn |first=Henry F. |author-link=Henry Fairfield Osborn |year=1905 |title=''Tyrannosaurus'' and other Cretaceous carnivorous dinosaurs |journal=Bulletin of the American Museum of Natural History |volume=21 |issue=3 |pages=259–265 |hdl=2246/1464  |url=https://digitallibrary.amnh.org/bitstream/handle/2246/1464//v2/dspace/ingest/pdfSource/bul/B021a14.pdf?sequence=1&isAllowed=y}}</ref>
| '''''[[Albertosaurus sarcophagus]]'''''
| Osborn
| 1905<ref name=Albertosaurus />
| CMN{{efn|[[Canadian Museum of Nature]], [[Ottawa]], Canada}} 5600/5601<ref>{{cite journal | last1 = Carr | first1 = Thomas D. | year = 2010 | title = A taxonomic assessment of the type series of ''Albertosaurus sarcophagus'' and the identity of Tyrannosauridae (Dinosauria, Coelurosauria) in the ''Albertosaurus'' bonebed from the Horseshoe Canyon Formation (Campanian–Maastrichtian, Late Cretaceous) | journal = Canadian Journal of Earth Sciences | volume = 47 | issue = 9| pages = 1213–1226 | doi = 10.1139/e10-035 | bibcode = 2010CaJES..47.1213C |url=https://researchgate.net/publication/233603205_A_taxonomic_assessment_of_the_type_series_of_Albertosaurus_sarcophagus_and_the_identity_of_Tyrannosauridae_Dinosauria_Coelurosauria_in_the_Albertosaurus_bonebed_from_the_Horseshoe_Canyon_Formation_Cam }}</ref>
| [[Horseshoe Canyon Formation]]
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref name=HorseshoeCanyon />
| {{flag|Canada}}<br>({{flag|Alberta}}){{refn|group=nb|Several specimens from the United States and Mexico may belong to this genus and/or species, but their identity is doubted<ref name=Albertosaurus2>{{Cite book|last1=Holtz|first1=T|title=The Dinosauria|last2=Barrett|first2=P.M.|last3=Dodson|first3=P.|date=2004|publisher=University of California Press|isbn=9780520941434|editor-last=Dodson|editor-first=P.|edition=2nd|location=Berkeley, California|pages=111–136|chapter=Tyrannosauroidea|oclc=801843269|editor2-last=Osmólska|editor2-first=H.|editor3-last=Weishampel|editor3-first=D.B.}}</ref>}}
| data-sort-value=1 | Valid
| data-sort-value=114 | [[Tyrannosauridae]]<ref>{{Cite journal | last1 = Loewen | first1 = M.A. | last2 = Irmis | first2 = R.B. | last3 = Sertich | first3 = J.J.W. | last4 = Currie | first4 = P. J. | last5 = Sampson | first5 = S. D. | year = 2013| title = Tyrant Dinosaur Evolution Tracks the Rise and Fall of Late Cretaceous Oceans | editor-last = Evans | editor-first = David C| editor-link = David C. Evans| journal = [[PLoS ONE]] | volume = 8 | issue = 11 | pages = e79420 | doi = 10.1371/journal.pone.0079420 | pmid =  24223179| pmc = 3819173| bibcode = 2013PLoSO...879420L | ref = {{sfnRef|Loewen ''et al.''|2013}}| doi-access = free }}</ref>
| Up to twenty-six individuals were reported from one site, making it the largest concentration of large theropods from the Cretaceous<ref>{{cite journal | last1 = Eberth | first1 = David A. | last2 = Currie | first2 = Philip J. | year = 2010 | title = Stratigraphy, sedimentology, and taphonomy of the ''Albertosaurus'' bonebed (upper Horseshoe Canyon Formation; Maastrichtian), southern Alberta, Canada | journal = Canadian Journal of Earth Sciences | volume = 47 | issue = 9| pages = 1119–1143 | doi = 10.1139/e10-045 | bibcode = 2010CaJES..47.1119E }}</ref>
| <div style="position:relative;{{mirrorH|display=block}}">[[File:Albertosaurus at Science Center of Iowa.jpg|frameless]]</div>
| [[File:Albertosaurus NT small.jpg|frameless]]
| Life restoration appears to be based on juvenile ''Gorgosaurus'' (cf. Hartman online)
|-
| '''''[[Albinykus]]'''''<br/><small>[https://doi.org/10.1080%2F02724634.2011.540053 Nesbitt ''et al.'', 2011]</small><ref name=Albinykus>{{cite journal |last=Nesbitt |first=Sterling J. |author2=Clarke, Julia A.|author3= Turner, Alan H.|author4= Norell, Mark A. |year=2011 |title=A small alvarezsaurid from the eastern Gobi Desert offers insight into evolutionary patterns in the Alvarezsauroidea |journal=Journal of Vertebrate Paleontology |volume=31 |issue=1 |pages=144–153 |doi=10.1080/02724634.2011.540053}}</ref>
| '''''[[Albinykus baatar]]'''''
| Nesbitt, Clarke, Turner, & Norell
| 2011<ref name=Albinykus />
| IGM{{efn|name=igm|Mongolian Institute of Geology, [[Ulaanbaatar]], Mongolia}} 100/3004<ref name=Albinykus />
| [[Javkhlant Formation]]
| data-sort-value=24 | [[Santonian]]–[[Campanian]], [[Late Cretaceous]]<ref name=Albinykus />
| {{flag|Mongolia}}<br>({{flag|Dornogovi}})
| data-sort-value=1 | Valid
| data-sort-value=121 | [[Alvarezsauridae]]<ref name=Albinykus />
| Preserved in a sitting position not unlike that of modern birds<ref name=Albinykus />
|
| [[File:Albinykus LM.png|frameless]]
| Lacks feathers and possibly more muscle around the tail base
|-
| style="background:#E6E6E6;" | '''''[[Alcovasaurus]]'''''<br/><small>[https://doi.org/10.1127%2Fnjgpa%2F2016%2F0551 Galton & Carpenter, 2016]</small><ref name=Alcovasaurus>{{cite journal |last1=Galton |first1=Peter M. |last2=Carpenter |first2=Kenneth |title=The plated dinosaur ''Stegosaurus longispinus'' Gilmore, 1914 (Dinosauria: Ornithischia; Upper Jurassic, western USA), type species of ''Alcovasaurus'' n. gen. |journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |date=5 February 2016 |volume=279 |issue=2 |pages=185–208 |doi=10.1127/njgpa/2016/0551 }}</ref>
| style="background:#E6E6E6;" | '''''[[Alcovasaurus longispinus]]'''''
| style="background:#E6E6E6;" data_sort_value=Galton_&_Carpenter | Galton & Carpenter (Gilmore)
| style="background:#E6E6E6;" data_sort_value=2016 | 2016<ref name=Alcovasaurus /> (1914)<ref>{{cite journal |last=Gilmore |first=C.W. |date=1914 |title=Osteology of the armoured Dinosauria in the United States National Museum, with special reference to the genus Stegosaurus |url=https://archive.org/details/osteologyofarmor00gilm |journal=United States National Museum Bulletin |volume=89 |pages=1–143 }}</ref>{{refn|group=nb|as ''Stegosaurus longispinus''}}
| style="background:#E6E6E6;" | UW{{efn|name=uw|[[University of Wyoming]], [[Laramie, Wyoming|Laramie]], United States}} 20503{{refn|group=nb|Formerly UW{{efn|name=uw}} D54}}<ref name=Alcovasaurus />
| style="background:#E6E6E6;" | [[Morrison Formation]]
| style="background:#E6E6E6;" data-sort-value=13 | [[Kimmeridgian]]–[[Tithonian]], [[Late Jurassic]]<ref name=Alcovasaurus />
| style="background:#E6E6E6;" data-sort-value=United_States_(Wyoming) | {{flag|United States}}<br>({{flag|Wyoming}})
| style="background:#E6E6E6;" data-sort-value=2 | Dubious
| style="background:#E6E6E6;" data-sort-value=9 | [[Stegosauridae]]<ref name=Alcovasaurus2>{{cite journal |last1=Costa |first1=Francisco |last2=Mateus |first2=Octávio |last3=Joger |first3=Ulrich |title=Dacentrurine stegosaurs (Dinosauria): A new specimen of ''Miragaia longicollum'' from the Late Jurassic of Portugal resolves taxonomical validity and shows the occurrence of the clade in North America |journal=PLOS ONE |date=13 November 2019 |volume=14 |issue=11 |pages=e0224263 |doi=10.1371/journal.pone.0224263 |pmid=31721771 |pmc=6853308 |bibcode=2019PLoSO..1424263C |doi-access=free }}</ref>
| style="background:#E6E6E6;" | Potentially a second species of the otherwise European ''Miragaia''<ref name=Alcovasaurus2 />
| style="background:#E6E6E6;" | <div style="position:relative;{{mirrorH|display=block}}">[[File:Alcovasaurus longispinus Skeletal.png|frameless]]</div>
| style="background:#E6E6E6;" |
| style="background:#E6E6E6;" |
|-
| '''''[[Alectrosaurus]]'''''<br/><small>[https://digitallibrary.amnh.org/bitstream/handle/2246/355//v2/dspace/ingest/pdfSource/bul/B067a02.pdf?sequence=1&isAllowed=y Gilmore, 1933]</small><ref name=Alectrosaurus>{{cite journal|last1=Gilmore|first1=C. W.|year=1933|title=On the dinosaurian fauna of the Iren Dabasu Formation|journal=Bulletin of the American Museum of Natural History|volume=67|issue=2|pages=23–78|hdl=2246/355|url=https://digitallibrary.amnh.org/bitstream/handle/2246/355//v2/dspace/ingest/pdfSource/bul/B067a02.pdf?sequence=1&isAllowed=y}}</ref>
| '''''[[Alectrosaurus olseni]]'''''
| Gilmore
| 1933<ref name=Alectrosaurus />
| AMNH{{efn|name=amnh}} 6554
| data-sort-value=Iren_Dabasu_Formation | [[Bayan Shireh Formation]]?<ref>{{cite journal |last1=Perle|first1=A.|title=O pervoy nakhodke Alektrozavra (Tyrannosauridae, Theropoda) iz pozdnego Mela Mongolii|trans-title=On the first discovery of Alectrosaurus (Tyrannosauridae, Theropoda) in the Late Cretaceous of Mongolia|journal=Shinzhlekh Ukhaany Akademi Geologiin Khureelen|year=1977|volume=3|issue=3|pages=104–113|language=Russian}}</ref><br>[[Iren Dabasu Formation]]<ref name=Alectrosaurus />{{refn|group=nb|name=holo}}
| data-sort-value=21 | [[Cenomanian]]<ref>{{cite journal|last1=Guo|first1=Z. X.|last2=Shi|first2=Y. P.|last3=Yang|first3=Y. T.|last4=Jiang|first4=S. Q.|last5=Li|first5=L. B.|last6=Zhao|first6=Z. G.|title=Inversion of the Erlian Basin (NE China) in the early Late Cretaceous: Implications for the collision of the Okhotomorsk Block with East Asia|date=2018|journal=Journal of Asian Earth Sciences|volume=154|pages=49–66|doi=10.1016/j.jseaes.2017.12.007|url=http://icpms.ustc.edu.cn/laicpms/publications/2018-GuoZX-JAES.pdf}}</ref>–[[Santonian]]?,<ref name=BayanShireh /> [[Late Cretaceous]]
| data-sort-value=China_(Inner_Mongolia) | {{flag|China}}<br>([[Inner Mongolia]]){{refn|group=nb|name=holo}}<br>{{flag|Mongolia}}<br>({{flag|Dornogovi}})?
| data-sort-value=1 | Valid
| data-sort-value=112 | [[Tyrannosauroidea]]<ref name=Albertosaurus2 />
| Had long legs which may be an adaptation to pursuit predation<ref>{{cite journal|last1=Carr|first1=T. D.|last2=Williamson|first2=T. E.|title=A reappraisal of tyrannosauroids from Iren Dabasu, Inner Mongolia, People's Republic of China|year=2005|journal=Journal of Vertebrate Paleontology|volume=25|issue=3}}</ref>
| [[File:Alectrosaurus Skeleton Reconstruction.jpg|frameless]]
| [[File:Alectrosaurus.png|frameless]]
|
|-
| '''''[[Aletopelta]]'''''<br/><small>[https://books.google.com/books?id=04tQ5_qJN8MC&pg=PA239 Ford & Kirkland, 2001]</small><ref name=Aletopelta>{{cite book|authors=T.L. Ford and J.I. Kirkland|year=2001|url=https://books.google.com/books?id=04tQ5_qJN8MC&pg=PA239|chapter=Carlsbad ankylosaur (Ornithischia, Ankylosauria): an ankylosaurid and not a nodosaurid|title=The Armored Dinosaurs|publisher=Indiana University Press|location=Bloomington|pages=239-260}}</ref>
| '''''[[Aletopelta coombsi]]'''''
| Ford & Kirkland
| 2001<ref name=Aletopelta />
| SDNHM{{efn|[[San Diego Natural History Museum]], [[San Diego]], United States}} 33909<ref name=Aletopelta />
| [[Point Loma Formation]]
| data-sort-value=25 | [[Campanian]], [[Late Cretaceous]]<ref name=Aletopelta />
| data-sort-value=United_States_(California) | {{flag|United States}}<br>({{flag|California}})
| data-sort-value=1 | Valid
| data-sort-value=10 | [[Ankylosauria]]<ref>{{cite journal|author1=Arbour, V. M. |author2=Currie, P. J. |year=2016|title=Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs|journal=Journal of Systematic Palaeontology|volume=14 |issue=5 |pages=1–60|doi=10.1080/14772019.2015.1059985|s2cid=214625754 }}</ref><ref>{{Cite journal|last1=G. Frauenfelder|first1=Timothy|last2=R. Bell|first2=Phil|last3=Brougham|first3=Tom|last4=J. Bevitt|first4=Joseph|last5=D. C. Bicknell|first5=Russell|last6=P. Kear|first6=Benjamin|last7=Wroe|first7=Stephen|last8=E. Campione|first8=Nicolás|date=2022|title=New Ankylosaurian Cranial Remains From the Lower Cretaceous (Upper Albian) Toolebuc Formation of Queensland, Australia|journal=Frontiers in Earth Science|volume=10|pages=1–17|doi=10.3389/feart.2022.803505}}</ref>
| Would have lived in present-day Mexico; its fossils were only found in California due to the shifting of tectonic plates<ref name=Aletopelta />
| [[File:Aletopelta.jpg|frameless]]
| [[File:Aletopelta NT.jpg|frameless]]
| Restoration depicts an ankylosaurine identity, although phylogenetic analyses variously place it as either a basal ankylosaurid or a nodosaurid
|-
| style="background:#E6E6E6;" | '''''[[Algoasaurus]]'''''<br/><small>[https://archive.org/details/BroomR.1904.OnTheOccurrenceOfAnApisthocoelianDinosauralgoasaurus Broom, 1904]</small><ref name=Algoasaurus>{{cite journal|author=Broom, R.|year=1904|url=https://archive.org/details/BroomR.1904.OnTheOccurrenceOfAnApisthocoelianDinosauralgoasaurus|title=On the occurrence of an opisthocoelian dinosaur (''Algoasaurus bauri'') in the Cretaceous beds of South Africa.|journal=Geological Magazine series 5|volume=1|issue=483|pages=445-447}}</ref>
| style="background:#E6E6E6;" | '''''[[Algoasaurus bauri]]'''''
| style="background:#E6E6E6;" | Broom
| style="background:#E6E6E6;" | 1904<ref name=Algoasaurus />
| style="background:#E6E6E6;" | AMNH{{efn|name=amnh}} 5631; SAM{{efn|[[Iziko South African Museum]], [[Cape Town]], South Africa}}-PK-K1500?<ref name=Algoasaurus2>{{Cite journal |last=McPhee |first=Blair W. |last2=Mannion |first2=Philip D. |last3=de Klerk |first3=William J. |last4=Choiniere |first4=Jonah N. |date=2016 |title=High diversity in the sauropod dinosaur fauna of the Lower Cretaceous Kirkwood Formation of South Africa: Implications for the Jurassic–Cretaceous transition |url=http://dx.doi.org/10.1016/j.cretres.2015.11.006 |journal=Cretaceous Research |volume=59 |pages=228–248 |doi=10.1016/j.cretres.2015.11.006 |issn=0195-6671}}</ref>{{refn|group=nb|The SAM material was rediscovered years after the loss of the holotype, and may or may not belong to the same assemblage<ref name=Algoasaurus2 />}}
| style="background:#E6E6E6;" | [[Kirkwood Formation]]
| style="background:#E6E6E6;" data-sort-value=15 | [[Berriasian]]–[[Hauterivian]]?,<ref name=Algoasaurus2 /> [[Early Cretaceous]]
| style="background:#E6E6E6;" | {{flag|South Africa}}<br>({{flag|Eastern Cape}})
| style="background:#E6E6E6;" data-sort-value=2 | Dubious
| style="background:#E6E6E6;" data-sort-value=68 | [[Eusauropoda]]<ref name=Algoasaurus2 />
| style="background:#E6E6E6;" | Today only known from very few bones; several were turned into bricks before they could be studied
| style="background:#E6E6E6;" | [[File:Algoasaurus.jpg|frameless]]
| style="background:#E6E6E6;" |
| style="background:#E6E6E6;" |
|-
| rowspan="2" | '''''[[Alioramus]]'''''<br/><small>[https://naturalhistory.si.edu/sites/default/files/media/translated_publications/Kurzanov%252076.pdf Kurzanov, 1976]</small><ref name=Alioramusremotus>{{cite journal |last=Kurzanov |first=Sergei M. |year=1976 |title=A new carnosaur from the Late Cretaceous of Nogon-Tsav, Mongolia |language=ru |journal=The Joint Soviet-Mongolian Paleontological Expedition Transactions |volume=3 |pages=93–104 |url=https://naturalhistory.si.edu/sites/default/files/media/translated_publications/Kurzanov%252076.pdf}}</ref>
| '''''[[Alioramus altai]]'''''
| Brusatte, Carr, Erickson, Bever, & Norell
| 2009<ref name=Alioramusaltai>{{cite journal |last=Brusatte |first=Stephen L. |author2=Carr, Thomas D.|author3= Erickson, Gregory M.|author4= Bever, Gabe S.|author5= Norell, Mark A. |year=2009 |title=A long-snouted, multihorned tyrannosaurid from the Late Cretaceous of Mongolia |journal=Proceedings of the National Academy of Sciences of the United States of America |volume= 106|doi=10.1073/pnas.0906911106 |pmid=19805035 |issue=41 |pages=17261–6 |pmc=2765207|doi-access=free }}</ref>
| IGM{{efn|name=igm}} 100/1844<ref name=Alioramusaltai />
| [[Nemegt Formation]]
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref name=Alioramusaltai />
| {{flag|Mongolia}}<br>({{flag|Ömnögovi}})
| data-sort-value=1 | Valid
| data-sort-value=114 | [[Tyrannosauridae]]<ref name=Qianzhousaurus>{{cite journal|title=A new clade of Asian Late Cretaceous long-snouted tyrannosaurids|doi=10.1038/ncomms4788|author=Junchang Lü |author2=Laiping Yi |author3=Stephen L. Brusatte |author4=Ling Yang |author5=Hua Li |author6=Liu Chen|journal=[[Nature Communications]]|volume=5|issue=3788|pages=3788|date=May 7, 2014 |pmid=24807588|bibcode=2014NatCo...5.3788L|doi-access=free}}</ref>
| Its discovery helped elucidate the affinities of ''Alioramus''
| [[File:Alioramus altai.png|frameless]]
| [[File:Alioramus altai.jpg|frameless]]
| Feathers may need to be trimmed a little (cf. ''A. remotus'' illustration below)
|-
| '''''[[Alioramus remotus]]'''''
| Kurzanov
| 1976<ref name=Alioramusremotus />
| PIN{{efn|name=pin}} 3141/1<ref name=Alioramusremotus />
| [[Nemegt Formation]]
| data-sort-value=26 | [[Maastrichtian]], [[Late Cretaceous]]<ref name=Alioramusaltai />
| {{flag|Mongolia}}<br>({{flag|Ömnögovi}})
| data-sort-value=1 | Valid
| data-sort-value=114 | [[Tyrannosauridae]]<ref name=Qianzhousaurus />
| Possessed an elongated snout with two rows of bumps
| [[File:Alioramus skeletal steveoc.png|frameless]]
| [[File:Alioramus Life Restoration.jpg|frameless]]
|
|-
|}

== See also ==
* [[List of dinosaur genera]]
* [[List of sauropod species]]
* [[List of African dinosaurs]]
* [[List of Asian dinosaurs]]
* [[List of European dinosaurs]]
* [[List of Indian and Madagascan dinosaurs]]
* [[List of North American dinosaurs]]
* [[List of South American dinosaurs]]
* [[List of Australian and Antarctic dinosaurs]]

== Institutional abbreviations ==
{{notelist}}

== Notes ==
{{reflist|group=nb}}

== References ==
{{reflist}}