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Coordinates: 29°18′N 103°30′W / 29.3°N 103.5°W / 29.3; -103.5
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2 fragmentary caudal vertebrae of indeterminate [[reptile]]s are known from the Rattlesnake Mountain sandstone member.<ref name=":2" />
2 fragmentary caudal vertebrae of indeterminate [[reptile]]s are known from the Rattlesnake Mountain sandstone member.<ref name=":2" />


==== Pseudosuchians ====
====Pseudosuchians====
{| class="wikitable" align="center"
{| class="wikitable" align="center"
|-
|-
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|Rattlesnake Mountain sandstone member.<ref name=":2" />
|Rattlesnake Mountain sandstone member.<ref name=":2" />
|Teeth.
|Teeth.
|A [[crocodilia]]n.
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| ''[[Deinosuchus]]''<ref name="sullivan-lucas">"Aguja Formation (Upper Shale Member), Big Bend Region, Texas," in Sullivan and Lucas (2006). Page 16.</ref>
|''[[Deinosuchus]]''<ref name="sullivan-lucas">"Aguja Formation (Upper Shale Member), Big Bend Region, Texas," in Sullivan and Lucas (2006). Page 16.</ref>
| ''D. riograndensis''<ref name="sullivan-lucas" />
|''D. riograndensis''<ref name="sullivan-lucas" />
| Texas,<ref name="sullivan-lucas" /> Chihuahua, and Coahuila<ref>{{Cite web|url=https://www.researchgate.net/publication/268186008|title=The first mandible fragment of Deinosuchus (Eusuchia: Alligatoroidea) discovered in Coahuila, Mexico|website=ResearchGate|access-date=2016-03-27}}</ref>
|Texas,<ref name="sullivan-lucas" /> Chihuahua, and Coahuila<ref>{{Cite web|url=https://www.researchgate.net/publication/268186008|title=The first mandible fragment of Deinosuchus (Eusuchia: Alligatoroidea) discovered in Coahuila, Mexico|website=ResearchGate|access-date=2016-03-27}}</ref>
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| Osteoderm and mandible fragment
|
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|Osteoderm and mandible fragment
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| rowspan="2" | [[File:Deinosuchus riograndensis.png|center|200px]]
|A giant [[Alligatoroidea|alligatoroid]].
⚫
|rowspan="2" |[[File:Deinosuchus riograndensis.png|center|200px]]
|-
|-
| style="background:#E6E6E6;" | ''[[Phobosuchus]]''<ref name="sullivan-lucas" />
|style="background:#E6E6E6;"|''[[Phobosuchus]]''<ref name="sullivan-lucas" />
| style="background:#fbdddb;" | ''P. riograndensis''<ref name="sullivan-lucas" />
|style="background:#fbdddb;"|''P. riograndensis''<ref name="sullivan-lucas" />
| style="background:#fbdddb;" | Texas,<ref name="sullivan-lucas" /> Chihuahua, and Coahuila
|style="background:#fbdddb;"|Texas,<ref name="sullivan-lucas" /> Chihuahua, and Coahuila
| style="background:#fbdddb;" |
|style="background:#fbdddb;"|
| style="background:#fbdddb;" |
|style="background:#fbdddb;"|
| style="background:#fbdddb;" | Reclassified as a ''[[Deinosuchus]]'' species
|style="background:#fbdddb;"| Reclassified as a ''[[Deinosuchus]]'' species
|-
|-
|}
|}


==== Ornithischians ====
====Ornithischians====
{| class="wikitable" align="center"
{| class="wikitable" align="center"
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|-
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! Genus !! Species !! Location !! Member !! Material !! width="50%"| Notes !! Images
! Genus !! Species !! Location !! Member !! Material !! width="50%"| Notes !! Images
|-
|-
| rowspan="2" | ''[[Agujaceratops]]''<ref name="agujaceratops">"Abstract," Lucas, Sullivan, and Hunt (2006)</ref>
|rowspan="2"|''[[Agujaceratops]]''<ref name="agujaceratops">"Abstract," Lucas, Sullivan, and Hunt (2006)</ref>
| ''A. mariscalensis''<ref name="agujaceratops" />
|''A. mariscalensis''<ref name="agujaceratops" />
| Texas<ref name="agujaceratops" />
|Texas<ref name="agujaceratops" />
| Low Upper Shale<ref name="Longrich''et al.''">{{Cite journal|last1=Longrich|first1=N. R.|last2=Sankey|first2=J.|last3=Tanke|first3=D.|year=2010|title=Texacephale langstoni, a new genus of pachycephalosaurid (Dinosauria: Ornithischia) from the upper Campanian Aguja Formation, southern Texas, USA|journal=Cretaceous Research|volume=31|issue=2|pages=274|doi=10.1016/j.cretres.2009.12.002}}</ref>
|Low Upper Shale<ref name="Longrich''et al.''">{{Cite journal|last1=Longrich|first1=N. R.|last2=Sankey|first2=J.|last3=Tanke|first3=D.|year=2010|title=Texacephale langstoni, a new genus of pachycephalosaurid (Dinosauria: Ornithischia) from the upper Campanian Aguja Formation, southern Texas, USA|journal=Cretaceous Research|volume=31|issue=2|pages=274|doi=10.1016/j.cretres.2009.12.002}}</ref>
|
|
| The type species, ''A. mariscalensis'', was formerly considered a species of ''Chasmosaurus''<ref name="agujaceratops" />
|The type species, ''A. mariscalensis'', was formerly considered a species of ''Chasmosaurus''<ref name="agujaceratops" />
| rowspan=2 | [[File:Agujaceratops BW.jpg|center|150px]]
|rowspan=2 |[[File:Agujaceratops BW.jpg|center|150px]]
|-
|-
| ''A. mavericus''<ref>Lehman, T.M.; Wick, S.L.; Barnes, K.R. (2016). "New specimens of horned dinosaurs from the Aguja Formation of West Texas, and a revision of Agujaceratops". Journal of Systematic Palaeontology. Online edition. doi:10.1080/14772019.2016.1210683.</ref>
|''A. mavericus''<ref>Lehman, T.M.; Wick, S.L.; Barnes, K.R. (2016). "New specimens of horned dinosaurs from the Aguja Formation of West Texas, and a revision of Agujaceratops". Journal of Systematic Palaeontology. Online edition. doi:10.1080/14772019.2016.1210683.</ref>
| Texas
|Texas
|
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|-
|-
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|''[[Angulomastacator]]''<ref name=":6">{{Cite journal |last=Wagner |first=Jonathan R. |last2=Lehman |first2=Thomas M. |date=2009-06-12 |title=An enigmatic new lambeosaurine hadrosaur (Reptilia: Dinosauria) from the Upper Shale member of the Campanian Aguja Formation of Trans-Pecos Texas |url=https://www.tandfonline.com/doi/full/10.1671/039.029.0208 |journal=Journal of Vertebrate Paleontology |language=en |volume=29 |issue=2 |pages=605–611 |doi=10.1671/039.029.0208 |issn=0272-4634}}</ref>
| ''[[Angulomastacator]]''<ref name="aguja-angulo">Wagner and Lehman (2009).</ref>
| ''A. daviesi''<ref name="aguja-angulo" />
|''A. daviesi''<ref name=":6" />
| Texas<ref name="aguja-angulo" />
|Texas<ref name=":6" />
|
|
|
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|A [[Lambeosaurinae|lambeosaurine]].
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|[[File:Life reconstruction of Angulomastacator daviesi.png|center|150 px]]
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|-
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| ''[[Aquilarhinus]]''<ref name="aguja-gryposaur">Listed as ?''Gryposaurus'' sp. in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.</ref>
|''[[Aquilarhinus]]''<ref name="aguja-gryposaur">Listed as ?''Gryposaurus'' sp. in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.</ref>
| ''A. palimentus''
|''A. palimentus''
| Texas<ref name="aguja-texas-2" />
|Texas<ref name="aguja-texas-2" />
|Lower Shale
|Lower Shale
|
|
| Formerly referred to ''Kritosaurus'' and ''Gryposaurus''.<ref>Prieto-Márquez, A. (2013). "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 of Systematic Palaeontology, (advance online publication) doi:10.1080/14772019.2013.770417</ref>
|Formerly referred to ''Kritosaurus'' and ''Gryposaurus''.<ref>Prieto-Márquez, A. (2013). "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 of Systematic Palaeontology, (advance online publication) doi:10.1080/14772019.2013.770417</ref>
|[[File:Aquilarhinus palimentus.png|center|150 px]]
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|-
⚫
|''[[Chasmosaurus]]''<ref name="aguja-chihuahua-texas" />
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|style="background:#fbdddb;"|''C. mariscalensis''<ref name="aguja-texas-2" />
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|style="background:#fbdddb;"| Texas<ref name="aguja-texas-2" />
|style="background:#fbdddb;"|
⚫
|style="background:#fbdddb;"| [Twelve] disarticulated skull (sic), postcrania, juvenile."<ref name="table-23-1-496">"Table 23.1," in Weishampel, et al. (2004). Page 496.</ref>
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|style="background:#fbdddb;"|Considered by paleontologists Lucas, Sullivan, and Hunt to be distinct enough from the ''Chasmosaurus'' type species, ''C. belli'' to warrant being split off to a new genus, ''Agujaceratops''.<ref name="agujaceratops" />
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|
|-
|-
| ''[[Chasmosaurus]]''<ref name="aguja-chihuahua-texas" />
|''[[Edmontonia]]''<ref name="aguja-texas-2" />
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|''E.'' sp<ref name="aguja-erugosidens">Listed as ''Edmontonia'' cf. ''rugosidens'' in "Dinosaur distribution (Late Cretaceous; North America; Texas).", Weishampel et al., 2004, p.582</ref><ref name="aguja ankylosaurs"<ref/>
⚫
| style="background:#fbdddb;" | ''C. mariscalensis''<ref name="aguja-texas-2" />
| style="background:#fbdddb;" | Texas<ref name="aguja-texas-2" />
|Texas<ref name="aguja-texas-2" /><ref name="aguja ankylosaurs"<ref/>
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|
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| style="background:#fbdddb;" |
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|
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| style="background:#fbdddb;" | [Twelve] disarticulated skull (sic), postcrania, juvenile."<ref name="table-23-1-496">"Table 23.1," in Weishampel, et al. (2004). Page 496.</ref>
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|
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| style="background:#fbdddb;" | Considered by paleontologists Lucas, Sullivan, and Hunt to be distinct enough from the ''Chasmosaurus'' type species, ''C. belli'' to warrant being split off to a new genus, ''Agujaceratops''.<ref name="agujaceratops" />
⚫
|[[File:Edmontonia dinosaur.png|center|150px]]
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|
|-
|-
| ''[[Edmontonia]]''<ref name="aguja-texas-2" />
|cf. ''[[Euoplocephalus]]''<ref name="aguja-texas-2" />
| ''E.'' sp<ref name="aguja-erugosidens">Listed as ''Edmontonia'' cf. ''rugosidens'' in "Dinosaur distribution (Late Cretaceous; North America; Texas).", Weishampel et al., 2004, p.582</ref><ref name="aguja ankylosaurs"<ref/>
|''E.'' sp<ref name="aguja-texas-2"<ref/><ref name="aguja ankylosaurs"<ref/>
| Texas<ref name="aguja-texas-2" /><ref name="aguja ankylosaurs"<ref/>
|Texas<ref name="aguja-texas-2"<ref/><ref name="aguja ankylosaurs"<ref/>
|
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| [[File:Edmontonia dinosaur.png|center|150px]]
|[[File:Euoplocephalus BW.jpg|center|150px]]
|-
|-
| cf. ''[[Euoplocephalus]]''<ref name="aguja-texas-2" />
|''[[Kritosaurus]]''<ref name="aguja-chihuahua-texas" />
⚫
|Indeterminate<ref name="aguja-chihuahua-texas">"Dinosaur distribution (Texas and Chihuahua)." Weishampel, et al. (2004). Page 582 and 588.</ref>
| ''E.'' sp<ref name="aguja-texas-2"<ref/><ref name="aguja ankylosaurs"<ref/>
|Chihuahua<ref name="aguja-chihuahua">"Dinosaur distribution (Late Cretaceous; North America; Chihuahua)." Weishampel, et al. (2004). Page 588.</ref>
| Texas<ref name="aguja-texas-2"<ref/><ref name="aguja ankylosaurs"<ref/>
|
|
|
⚫
| [[File:Euoplocephalus BW.jpg|center|150px]]
|-
⚫
| ''[[Kritosaurus]]''<ref name="aguja-chihuahua-texas" />
⚫
| Indeterminate<ref name="aguja-chihuahua-texas">"Dinosaur distribution (Texas and Chihuahua)." Weishampel, et al. (2004). Page 582 and 588.</ref>
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| Chihuahua<ref name="aguja-chihuahua">"Dinosaur distribution (Late Cretaceous; North America; Chihuahua)." Weishampel, et al. (2004). Page 588.</ref>
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| [[File:Kritosaurus BW.jpg|center|150px]]
|[[File:Kritosaurus BW.jpg|center|150px]]
|-
|-
|''[[Malefica]]''<ref name=":3">{{Cite journal |last1=Prieto-Márquez |first1=Albert |last2=Wagner |first2=Jonathan R. |date=2022-11-10 |title=A new 'duck-billed' dinosaur (Ornithischia: Hadrosauridae) from the upper Campanian of Texas points to a greater diversity of early hadrosaurid offshoots |url=https://www.sciencedirect.com/science/article/pii/S0195667122002804 |journal=Cretaceous Research |volume=143 |language=en |pages=105416 |doi=10.1016/j.cretres.2022.105416 |s2cid=253470207 |issn=0195-6671}}</ref>
|''[[Malefica]]''<ref name=":3">{{Cite journal |last1=Prieto-Márquez |first1=Albert |last2=Wagner |first2=Jonathan R. |date=2022-11-10 |title=A new 'duck-billed' dinosaur (Ornithischia: Hadrosauridae) from the upper Campanian of Texas points to a greater diversity of early hadrosaurid offshoots |url=https://www.sciencedirect.com/science/article/pii/S0195667122002804 |journal=Cretaceous Research |volume=143 |language=en |pages=105416 |doi=10.1016/j.cretres.2022.105416 |s2cid=253470207 |issn=0195-6671}}</ref>
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|-
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| ''[[Panoplosaurus]]''<ref name="aguja ankylosaurs"/>
|''[[Panoplosaurus]]''<ref name="aguja ankylosaurs"/>
| ''P. mirus''<ref name="aguja ankylosaurs">{{cite thesis |last=West |first=Bryanna |date=2020 |title=Campanian-Maastrictian Ankylosaurs of West Texas |publisher=Texas Tech University |url=https://repository.tcu.edu/bitstream/handle/116099117/39886/27957801.pdf?sequence=1 }}</ref>
|''P. mirus''<ref name="aguja ankylosaurs">{{cite thesis |last=West |first=Bryanna |date=2020 |title=Campanian-Maastrictian Ankylosaurs of West Texas |publisher=Texas Tech University |url=https://repository.tcu.edu/bitstream/handle/116099117/39886/27957801.pdf?sequence=1 }}</ref>
| Texas<ref name="aguja ankylosaurs" />
|Texas<ref name="aguja ankylosaurs" />
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|-
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| ''[[Texacephale]]''<ref name="aguja-texa-longrich">"Abstract," Longrich, Sankey, and Tanke (2010).</ref>
|''[[Texacephale]]''<ref name="Longrich''et al.''" />
| ''T. langstoni''<ref name="aguja-texa-longrich" />
|''T. langstoni''<ref name="Longrich''et al.''" />
| Texas<ref name="aguja-texa-longrich" />
|Texas<ref name="Longrich''et al.''" />
| Low Upper Shale<ref name="Longrich''et al.''" />
|Low Upper Shale<ref name="Longrich''et al.''" />
|
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|A [[Pachycephalosauria|pachycephalosaur]].
|
|[[File:Texacephale langstoni skull dome by Nick Longrich.png|center|150 px]]
|
|-
|-
| ''[[Yehuecauhceratops]]''<ref>{{cite journal | last1 = Rivera-Sylva | first1 = H.E. | last2 = Hendrick | first2 = B.P. | last3 = Dodson | first3 = P. | year = 2016 | title = A Centrosaurine (Dinosauria: Ceratopsia) from the Aguja Formation (Late Campanian) of Northern Coahuila, Mexico | journal = PLOS ONE | volume = 11 | issue = 4| page = e0150529 | doi = 10.1371/journal.pone.0150529 | pmid=27073969 | pmc=4830452| bibcode = 2016PLoSO..1150529R | doi-access = free }}</ref>
|''[[Yehuecauhceratops]]''<ref>{{cite journal | last1 = Rivera-Sylva | first1 = H.E. | last2 = Hendrick | first2 = B.P. | last3 = Dodson | first3 = P. | year = 2016 | title = A Centrosaurine (Dinosauria: Ceratopsia) from the Aguja Formation (Late Campanian) of Northern Coahuila, Mexico | journal = PLOS ONE | volume = 11 | issue = 4| page = e0150529 | doi = 10.1371/journal.pone.0150529 | pmid=27073969 | pmc=4830452| bibcode = 2016PLoSO..1150529R | doi-access = free }}</ref>
| ''Y. mudei''<ref name="2016desc">{{cite journal | last1 = Rivera-Sylva | first1 = H.E. | last2 = Hendrick | first2 = B.P. | last3 = Dodson | first3 = P. | title = A Centrosaurine (Dinosauria: Ceratopsia) from the Aguja Formation (Late Campanian) of Northern Coahuila, Mexico | journal = PLOS ONE | date = 2016 | volume = 11 | issue = 4 | page = e0150529 | doi = 10.1371/journal.pone.0150529 | pmc = 4830452 | pmid=27073969| bibcode = 2016PLoSO..1150529R | doi-access = free }}</ref>
|''Y. mudei''<ref name="2016desc">{{cite journal | last1 = Rivera-Sylva | first1 = H.E. | last2 = Hendrick | first2 = B.P. | last3 = Dodson | first3 = P. | title = A Centrosaurine (Dinosauria: Ceratopsia) from the Aguja Formation (Late Campanian) of Northern Coahuila, Mexico | journal = PLOS ONE | date = 2016 | volume = 11 | issue = 4 | page = e0150529 | doi = 10.1371/journal.pone.0150529 | pmc = 4830452 | pmid=27073969| bibcode = 2016PLoSO..1150529R | doi-access = free }}</ref>
| Coahuila<ref>{{cite journal | last1 = Rivera-Sylva | first1 = H.E. | last2 = Frey | first2 = E. | last3 = Stinnesbeck | first3 = W. | last4 = Guzman-Gutirrez | first4 = J.R. | last5 = Gonzalez-Gonzalez | year = 2017 | title = Mexican ceratopsids: Considerations on their diversity and evolution | journal = Journal of South American Earth Sciences | doi = 10.1016/j.jsames.2017.01.008 }}</ref>
|Coahuila<ref>{{cite journal | last1 = Rivera-Sylva | first1 = H.E. | last2 = Frey | first2 = E. | last3 = Stinnesbeck | first3 = W. | last4 = Guzman-Gutirrez | first4 = J.R. | last5 = Gonzalez-Gonzalez | year = 2017 | title = Mexican ceratopsids: Considerations on their diversity and evolution | journal = Journal of South American Earth Sciences | doi = 10.1016/j.jsames.2017.01.008 }}</ref>
|
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|A [[Centrosaurinae|centrosaurine]].
|
| [[File:Yehuecauhceratops.jpg|center|150px]]
|[[File:Yehuecauhceratops.jpg|center|150px]]
|-
|-
|}
|}


==== Theropods ====
====Theropods====
Indeterminate ornithomimid remains are known from the Upper Aguja Formation.<ref name="sullivan2006">Sullivan, R.M., and Lucas, S.G. 2006. "[http://www.nmnaturalhistory.org/science/bulletins/35/sci_bulletin35_2.pdf The Kirtlandian land-vertebrate "age" – faunal composition, temporal position and biostratigraphic correlation in the nonmarine Upper Cretaceous of western North America]{{dead link|date=May 2017|bot=InternetArchiveBot|fix-attempted=yes}}." New Mexico Museum of Natural History and Science, Bulletin 35:7-29.</ref> Indeterminate tyrannosaurid fossils are known from the Upper Aguja Formation of Texas and Mexico.<ref name="Mortimer 2004">{{cite web| last =Mortimer| first =M| title =Tyrannosauroidea| work =The Theropod Database| year =2004| url =http://archosaur.us/theropoddatabase/Tyrannosauroidea.html#Tyrannosaurusrex| access-date =2007-08-21| archive-url =https://web.archive.org/web/20130929074932/http://archosaur.us/theropoddatabase/Tyrannosauroidea.html#Tyrannosaurusrex| archive-date =2013-09-29| url-status =dead}}</ref>
Indeterminate ornithomimid remains are known from the Upper Aguja Formation.<ref name="sullivan2006">Sullivan, R.M., and Lucas, S.G. 2006. "[http://www.nmnaturalhistory.org/science/bulletins/35/sci_bulletin35_2.pdf The Kirtlandian land-vertebrate "age" – faunal composition, temporal position and biostratigraphic correlation in the nonmarine Upper Cretaceous of western North America]{{dead link|date=May 2017|bot=InternetArchiveBot|fix-attempted=yes}}." New Mexico Museum of Natural History and Science, Bulletin 35:7-29.</ref> Indeterminate tyrannosaurid fossils are known from the Upper Aguja Formation of Texas and Mexico.<ref name="Mortimer 2004">{{cite web| last =Mortimer| first =M| title =Tyrannosauroidea| work =The Theropod Database| year =2004| url =http://archosaur.us/theropoddatabase/Tyrannosauroidea.html#Tyrannosaurusrex| access-date =2007-08-21| archive-url =https://web.archive.org/web/20130929074932/http://archosaur.us/theropoddatabase/Tyrannosauroidea.html#Tyrannosaurusrex| archive-date =2013-09-29| url-status =dead}}</ref>


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! Genus !! Species !! Location !! Member !! Material !! Notes !! Images
! Genus !! Species !! Location !! Member !! Material !! Notes !! Images
|-
|-
| cf. [[Tyrannosauridae]]<ref name="Mortimer 2004"/>
|cf. [[Tyrannosauridae]]<ref name="Mortimer 2004"/>
| Indeterminate<ref name="Mortimer 2004"/>
|Indeterminate<ref name="Mortimer 2004"/>
| Texas<ref name="Mortimer 2004"/>
|Texas<ref name="Mortimer 2004"/>
⚫
|
|
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|-
|-
| cf. ''[[Dromaeosaurus]]''<ref name="aguja-dromaeosaurus">Listed as cf. ''Dromaeosaurus'' sp. in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.</ref>
|cf. ''[[Dromaeosaurus]]''<ref name="aguja-dromaeosaurus">Listed as cf. ''Dromaeosaurus'' sp. in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.</ref>
| Indeterminate<ref name="aguja-dromaeosaurus" />
|Indeterminate<ref name="aguja-dromaeosaurus" />
| Texas<ref name="aguja-texas-2">"Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.</ref>
|Texas<ref name="aguja-texas-2">"Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.</ref>
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| [[File:Dromaeosaurus Restoration.png|center|150px]]
|[[File:Dromaeosaurus Restoration.png|center|150px]]
|-
|-
| ''[[Leptorhynchos (dinosaur)|Leptorhynchos]]''
|''[[Leptorhynchos (dinosaur)|Leptorhynchos]]''
| ''L. gaddisi''
|''L. gaddisi''
| Texas<ref>Longrich, N. R.; Barnes, K.; Clark, S.; Millar, L. (2013). "Caenagnathidae from the Upper Campanian Aguja Formation of West Texas, and a Revision of the Caenagnathinae". Bulletin of the Peabody Museum of Natural History 54: 23. doi:10.3374/014.054.0102. edit</ref>
|Texas<ref>Longrich, N. R.; Barnes, K.; Clark, S.; Millar, L. (2013). "Caenagnathidae from the Upper Campanian Aguja Formation of West Texas, and a Revision of the Caenagnathinae". Bulletin of the Peabody Museum of Natural History 54: 23. doi:10.3374/014.054.0102. edit</ref>
|
|
|
|
| A [[caenagnathid]]
|A [[caenagnathid]]
| [[File:Leptorhynchos by Nick Longrich.jpg|center|150px]]
|[[File:Leptorhynchos by Nick Longrich.jpg|center|150px]]
|-
|-
| rowspan="2" | ''[[Ricardoestesia]]''<ref name="aguja-texas">"Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 581.</ref>
|rowspan="2" | ''[[Ricardoestesia]]''<ref name="aguja-texas">"Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 581.</ref>
| <small>''R. cf. gilmorei''</small><ref name="aguja-rgilmorei">Listed as ''R.'' cf. ''gilmorei'' in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 581.</ref>
| <small>''R. cf. gilmorei''</small><ref name="aguja-rgilmorei">Listed as ''R.'' cf. ''gilmorei'' in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 581.</ref>
| Texas<ref name="aguja-texas" />
|Texas<ref name="aguja-texas" />
|
|
|
|
|
|
| rowspan=2 |
|rowspan=2 |
|-
|-
| ''R. isosceles''<ref name="aguja-texas" />
|''R. isosceles''<ref name="aguja-texas" />
| Texas<ref name="aguja-texas" />
|Texas<ref name="aguja-texas" />
|
|
|
|
|
|
|-
|-
| ''[[Saurornitholestes]]''<ref name="aguja-texas-2" />
|''[[Saurornitholestes]]''<ref name="aguja-texas-2" />
| <small>''S. cf. langstoni''</small><ref name="aguja-slangstoni">Listed as ''Saurornitholestes'' cf. ''langstoni'' in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.</ref>
|<small>''S. cf. langstoni''</small><ref name="aguja-slangstoni">Listed as ''Saurornitholestes'' cf. ''langstoni'' in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.</ref>
| Texas<ref name="aguja-texas-2" />
|Texas<ref name="aguja-texas-2" />
|
|
|
|
|
|
| [[File:Saurornitholestes digging Burrows wahweap.jpg|center|150px]]
|[[File:Saurornitholestes digging Burrows wahweap.jpg|center|150px]]
|-
|-
| cf. ''[[Troodon]]''<ref name="aguja-troodon">Listed as cf. ''Troodon'' sp. in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.</ref>
|cf. ''[[Troodon]]''<ref name="aguja-troodon">Listed as cf. ''Troodon'' sp. in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.</ref>
| Indeterminate<ref name="aguja-troodon" />
|Indeterminate<ref name="aguja-troodon" />
|Texas<ref name="aguja-texas-2" />
|Texas<ref name="aguja-texas-2" />
|
|
|
|
|
|
| [[File:Troodon (cropped).jpg|center|150px]]
|[[File:Troodon (cropped).jpg|center|150px]]
|-
|-
|}
|}


==== Lepidosaurs ====
====Lepidosaurs====
{| class="wikitable" align="center"
{| class="wikitable" align="center"
|-
|-
! colspan="7" align="center" | '''[[Lepidosaur]]s'''
! colspan="7" align="center" | '''[[Lepidosaur]]s of the Aguja Formation'''
|-
|-
! Genus !! Species !! Location !! Member !! Material !! Notes !! Images
! Genus !! Species !! Location !! Member !! Material !! Notes !! Images
|-
|-
| [[Mosasauridae]]<ref name=":2" />
|[[Mosasauridae]]<ref name=":2" />
|Indeterminate<ref name=":2" />
|Indeterminate<ref name=":2" />
| Ten Bits Ranch.<ref name=":2" />
|Ten Bits Ranch.<ref name=":2" />
|Rattlesnake Mountain sandstone member.<ref name=":2" />
|Rattlesnake Mountain sandstone member.<ref name=":2" />
|1 partial vetebra.<ref name=":2" />
|1 partial vetebra.<ref name=":2" />
|
|
|
|
|-
|-
|}
|}


==== Turtles ====
====Turtles====
{| class="wikitable" align="center"
{| class="wikitable" align="center"
|-
|-
Line 279: Line 279:
|[[File:Chupacabrachelys cropped.png|center|150 px]]
|[[File:Chupacabrachelys cropped.png|center|150 px]]
|-
|-
| ''[[Terlinguachelys]]''<ref name="sullivan-lucas" /><ref name=":5">{{Cite journal |last=Lehman |first=Thomas M. |last2=Tomlinson |first2=Susan L. |date=November 2004 |title=Terlinguachelys fischbecki, a new genus and species of sea turtle (Chelonioidea: Protostegidae) from the Upper Cretaceous of Texas |url=https://www.cambridge.org/core/journals/journal-of-paleontology/article/abs/terlinguachelys-fischbecki-a-new-genus-and-species-of-sea-turtle-chelonioidea-protostegidae-from-the-upper-cretaceous-of-texas/E575A92A233C4692C2DCD15511066A92 |journal=Journal of Paleontology |language=en |volume=78 |issue=6 |pages=1163–1178 |doi=10.1666/0022-3360(2004)078<1163:TFANGA>2.0.CO;2 |issn=0022-3360}}</ref>
|''[[Terlinguachelys]]''<ref name="sullivan-lucas" /><ref name=":5">{{Cite journal |last=Lehman |first=Thomas M. |last2=Tomlinson |first2=Susan L. |date=November 2004 |title=Terlinguachelys fischbecki, a new genus and species of sea turtle (Chelonioidea: Protostegidae) from the Upper Cretaceous of Texas |url=https://www.cambridge.org/core/journals/journal-of-paleontology/article/abs/terlinguachelys-fischbecki-a-new-genus-and-species-of-sea-turtle-chelonioidea-protostegidae-from-the-upper-cretaceous-of-texas/E575A92A233C4692C2DCD15511066A92 |journal=Journal of Paleontology |language=en |volume=78 |issue=6 |pages=1163–1178 |doi=10.1666/0022-3360(2004)078<1163:TFANGA>2.0.CO;2 |issn=0022-3360}}</ref>
| ''T. fischbecki''<ref name="sullivan-lucas" /><ref name=":5" />
|''T. fischbecki''<ref name="sullivan-lucas" /><ref name=":5" />
| Texas
|Texas
| Rattlesnake Mountain Sandstone<ref name="sullivan-lucas" />
|Rattlesnake Mountain Sandstone<ref name="sullivan-lucas" />
|
|
|A [[Protostegidae|protostegid]].
|A [[Protostegidae|protostegid]].
Line 336: Line 336:
|
|
|-
|-
| ''[[Eotexachara]]''<ref name=":1">{{Cite journal |last=Wick |first=Steven L. |date=2021-12-01 |title=New early Campanian characiform fishes (Otophysi: Characiformes) from West Texas support a South American origin for known Late Cretaceous characiforms from North America |url=https://www.sciencedirect.com/science/article/pii/S019566712100241X |journal=Cretaceous Research |language=en |volume=128 |pages=104993 |doi=10.1016/j.cretres.2021.104993 |issn=0195-6671}}</ref>
|''[[Eotexachara]]''<ref name=":1">{{Cite journal |last=Wick |first=Steven L. |date=2021-12-01 |title=New early Campanian characiform fishes (Otophysi: Characiformes) from West Texas support a South American origin for known Late Cretaceous characiforms from North America |url=https://www.sciencedirect.com/science/article/pii/S019566712100241X |journal=Cretaceous Research |language=en |volume=128 |pages=104993 |doi=10.1016/j.cretres.2021.104993 |issn=0195-6671}}</ref>
|''E. malateres''<ref name=":1" />
|''E. malateres''<ref name=":1" />
|
|
|
|
|Dentaries.<ref name=":1" />
|Dentaries.<ref name=":1" />
| A [[Characiformes|characiform]].
|A [[Characiformes|characiform]].
|
|
|-
|-
|''[[Lepidotes]]''<ref name=":2" />
|''[[Lepidotes]]''<ref name=":2" />
Line 461: Line 461:
|"3 fragmentary teeth".
|"3 fragmentary teeth".
|
|
|[[File:Cretalamna reconstruction.png|center|150 px]]
|
|-
|-
|''[[Cretorectolobus]]''<ref name=":2" />
|''[[Cretorectolobus]]''<ref name=":2" />
Line 471: Line 471:
|
|
|-
|-
| ''[[Hybodus]]''<ref name=":2" />
|''[[Hybodus]]''<ref name=":2" />
|''H.'' sp.
|''H.'' sp.
| Ten Bits Ranch.
|Ten Bits Ranch.
|Rattlesnake Mountain sandstone member.<ref name=":2" />
|Rattlesnake Mountain sandstone member.<ref name=":2" />
|2 specimens, one complete and one partial tooth.
|2 specimens, one complete and one partial tooth.
| A [[Hybodontiformes|hybodont]].
|A [[Hybodontiformes|hybodont]].
|[[File:Hybodus hauffianus.png|center|150 px]]
|
|-
|-
|''[[Igdabatis]]''<ref name=":2" />
|''[[Igdabatis]]''<ref name=":2" />
Line 500: Line 500:
|"Seven fragmentary rostral teeth and approximately 216 whole and fragmentary oral teeth".
|"Seven fragmentary rostral teeth and approximately 216 whole and fragmentary oral teeth".
|A [[sawskate]].
|A [[sawskate]].
|[[File:Ischyrhiza mira.jpg|center|150 px]]
|
|-
|-
|''[[Lonchidion]]''<ref name=":2" />
|''[[Lonchidion]]''<ref name=":2" />
Line 553: Line 553:
|"7 fragmentary teeth".
|"7 fragmentary teeth".
|A [[sawskate]].
|A [[sawskate]].
|[[File:Ptychotrygon sp.jpg|center|150 px]]
|
|-
|-
|''[[Rhinobatos]]''<ref name=":2" />
|''[[Rhinobatos]]''<ref name=":2" />
Line 577: Line 577:
|"Approximately 165 complete and fragmentary anterior and lateral teeth, and 2 posterior teeth".
|"Approximately 165 complete and fragmentary anterior and lateral teeth, and 2 posterior teeth".
|A [[Mitsukurinidae|mitsukurinid]].
|A [[Mitsukurinidae|mitsukurinid]].
|[[File:Scapanorhynchus lewisii.jpg|center|150 px]]
|
|-
|-
|rowspan=4|[[Sclerorhynchidae]]<ref name=":2" />
|rowspan=4|[[Sclerorhynchidae]]<ref name=":2" />
Line 614: Line 614:
|"26 complete and fragmentary anterior and lateral teeth".
|"26 complete and fragmentary anterior and lateral teeth".
|An [[Anacoracidae|anacoracid]].
|An [[Anacoracidae|anacoracid]].
|[[File:MenuhaSqualicoraxKaupi.jpg|center|150 px]]
|
|-
|-
|''S. pristodontus''
|''S. pristodontus''
Line 621: Line 621:
|2 specimens.
|2 specimens.
|An [[Anacoracidae|anacoracid]].
|An [[Anacoracidae|anacoracid]].
|[[File:Squalicorax pristodontus Agassiz, 1843 1.jpg|center|150 px]]
|
|-
|-
|''[[Squatina]]''<ref name=":2" />
|''[[Squatina]]''<ref name=":2" />
Line 684: Line 684:


=== Bibliography ===
=== Bibliography ===
* {{cite journal
| last = Lehman
| first = Thomas M.
|author2= Susan L. Tomlinson
| title = ''Terlinguachelys fischbecki'', a new genus and species of sea turtle (Chelonioidea: Protostegidae) from the Upper Cretaceous of Texas
| journal = Journal of Paleontology
| volume = 78
| issue = 6
| pages = 1163–1178
| publisher = The Paleontological Society
| year = 2004
| url = https://dx.doi.org/10.1666%2F0022-3360%282004%29078%3C1163%3ATFANGA%3E2.0.CO%3B2
| doi = 10.1666/0022-3360(2004)078<1163:TFANGA>2.0.CO;2
| s2cid = 54755373
}}
* Longrich, N.R., Sankey, J., and Tanke, D. (2010) ''Texacephale langstoni'', a new genus of pachycephalosaurid (Dinosauria: Ornithischia) from the upper Campanian Aguja Formation, southern Texas, USA. Cretaceous Research. {{doi|10.1016/j.cretres.2009.12.002}}.
* Sullivan, R.M., and Lucas, S.G. 2006. "[http://www.nmnaturalhistory.org/science/bulletins/35/sci_bulletin35_2.pdf The Kirtlandian land-vertebrate "age" – faunal composition, temporal position and biostratigraphic correlation in the nonmarine Upper Cretaceous of western North America]{{dead link|date=May 2017 |bot=InternetArchiveBot |fix-attempted=yes }}." New Mexico Museum of Natural History and Science, Bulletin 35:7-29.
* Sullivan, R.M., and Lucas, S.G. 2006. "[http://www.nmnaturalhistory.org/science/bulletins/35/sci_bulletin35_2.pdf The Kirtlandian land-vertebrate "age" – faunal composition, temporal position and biostratigraphic correlation in the nonmarine Upper Cretaceous of western North America]{{dead link|date=May 2017 |bot=InternetArchiveBot |fix-attempted=yes }}." New Mexico Museum of Natural History and Science, Bulletin 35:7-29.
* Spencer G. Lucas, Robert M. Sullivan and Adrian P. Hunt: ''Re-evaluation of ''Pentaceratops'' and ''Chasmosaurus'' (Ornithischia: Ceratopsidae) in the Upper Cretaceous of the Western Interior.'' In: New Mexico Museum of Natural History and Science Bulletin 35 (2006), S. 367-370.[http://www.nmnaturalhistory.org/science/bulletins/35/sci_bulletin35_44.pdf PDF]{{Dead link|date=October 2018 |bot=InternetArchiveBot |fix-attempted=yes }}
* Spencer G. Lucas, Robert M. Sullivan and Adrian P. Hunt: ''Re-evaluation of ''Pentaceratops'' and ''Chasmosaurus'' (Ornithischia: Ceratopsidae) in the Upper Cretaceous of the Western Interior.'' In: New Mexico Museum of Natural History and Science Bulletin 35 (2006), S. 367-370.[http://www.nmnaturalhistory.org/science/bulletins/35/sci_bulletin35_44.pdf PDF]{{Dead link|date=October 2018 |bot=InternetArchiveBot |fix-attempted=yes }}
⚫
* {{Cite journal |last1=Wagner |first1=Jonathan R. |last2=Lehman |first2=Thomas M. |title=An Enigmatic New Lambeosaurine Hadrosaur (Reptilia: Dinosauria) from the Upper Shale Member of the Campanian Aguja Formation of Trans-Pecos Texas |journal=Journal of Vertebrate Paleontology |volume=29 |issue=2 |pages=605–611 |year=2009 |doi=10.1671/039.029.0208|s2cid=128555861 }}
* {{cite LSA |last=[[David B. Weishampel|Weishampel]] |first=David B. |last2=[[Peter Dodson|Dodson]] |first2=Peter |last3=[[Halszka Osmólska|Osmólska]] (eds.) |first3=Halszka |year=2004 |title=The Dinosauria, 2nd edition |url=https://books.google.com/books?id=vtZFDb_iw40C |publisher=Berkeley: University of California Press |pages=1–880 |accessdate=2019-02-21}} {{ISBN|0-520-24209-2}}
* {{cite LSA |last=[[David B. Weishampel|Weishampel]] |first=David B. |last2=[[Peter Dodson|Dodson]] |first2=Peter |last3=[[Halszka Osmólska|Osmólska]] (eds.) |first3=Halszka |year=2004 |title=The Dinosauria, 2nd edition |url=https://books.google.com/books?id=vtZFDb_iw40C |publisher=Berkeley: University of California Press |pages=1–880 |accessdate=2019-02-21}} {{ISBN|0-520-24209-2}}


Revision as of 20:26, 30 May 2023

Aguja Formation
Stratigraphic range: Lower to Middle Campanian
~81.5–76.9 Ma
↓
Outcrops of the Aguja Formation, Big Bend National Park, Texas
TypeGeological formation
Unit ofTornillo Group
Sub-unitsUpper Shale, Terlingua Creek Sandstone, Rattlesnake Mt. Sandstone, Lower Shale & Basal Sandstone Members
UnderliesJavelina Formation
OverliesPen Formation
Lithology
PrimarySandstone, conglomerate, claystone
OtherMudstone, shale, limestone
Location
Coordinates29°18′N 103°30′W / 29.3°N 103.5°W / 29.3; -103.5
Approximate paleocoordinates35°48′N 77°00′W / 35.8°N 77.0°W / 35.8; -77.0
Region Texas
 Chihuahua
 Coahuila
Country USA
 Mexico
Aguja Formation is located in the United States
Aguja Formation
Aguja Formation (the United States)
Aguja Formation is located in Texas
Aguja Formation
Aguja Formation (Texas)
Paleogeography of the Campanian

The Aguja Formation is a geological formation in North America, exposed in Texas, United States and Chihuahua and Coahuila in Mexico, whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1] Fossil palms have also been unearthed here.[2]

Age

The ages of the Aguja Formation and its primary fossil-bearing unit, the Upper Shale, are not well understood. Due to the presence of the ammonite Baculites mclearni, which only occurs from 80.67 - 80.21 Ma, in the underlying Rattlesnake Mountain Sandstone and the Terlingua Creek Sandstone, it is likely that the Upper Shale was younger than 80.2 Ma.[3] A radiometric date of 76.9 Ma was recovered in the Upper Shale, making it likely the formation wasn't younger than 76.9 Ma.[3] The contact with the overlying Javelina Formation has been estimated at about 70 Ma ago[4] but also as recently as 68.5 million years ago.[5] This is unlikely, however, due to the presence of Bravoceratops, more primitive than an unnamed chasmosaurine from the De-na-zin Member of the Kirtland Formation, in the lowermost section of the formation.[6] The age of the Basal Sandstone is constrained by the presence of Scaphites hippocrepis III in the overlying Pen Formation which has been dated as old as 81.53 Ma.[3][7]

Vertebrate paleofauna

A duckbilled dinosaur (Hadrosauridae) caudal vertebra from the Aguja Formation

Reptiles

2 fragmentary caudal vertebrae of indeterminate reptiles are known from the Rattlesnake Mountain sandstone member.[8]

Pseudosuchians

Crurotarsans of the Aguja Formation
Genus Species Location Member Material Notes Images
Crocodilia[8] Indeterminate[8] Ten Bits Ranch.[8] Rattlesnake Mountain sandstone member.[8] Teeth. A crocodilian.
Deinosuchus[9] D. riograndensis[9] Texas,[9] Chihuahua, and Coahuila[10] Osteoderm and mandible fragment A giant alligatoroid.
Phobosuchus[9] P. riograndensis[9] Texas,[9] Chihuahua, and Coahuila Reclassified as a Deinosuchus species

Ornithischians

Ornithischians of the Aguja Formation
Genus Species Location Member Material Notes Images
Agujaceratops[11] A. mariscalensis[11] Texas[11] Low Upper Shale[12] The type species, A. mariscalensis, was formerly considered a species of Chasmosaurus[11]
A. mavericus[13] Texas
Angulomastacator[14] A. daviesi[14] Texas[14] A lambeosaurine.
Aquilarhinus[15] A. palimentus Texas[16] Lower Shale Formerly referred to Kritosaurus and Gryposaurus.[17]
Chasmosaurus[18] C. mariscalensis[16] Texas[16] [Twelve] disarticulated skull (sic), postcrania, juvenile."[19] Considered by paleontologists Lucas, Sullivan, and Hunt to be distinct enough from the Chasmosaurus type species, C. belli to warrant being split off to a new genus, Agujaceratops.[11]
Edmontonia[16] E. sp[20][21] Texas[16][21]
cf. Euoplocephalus[16] E. sp[16][21] Texas[16][21]
Kritosaurus[18] Indeterminate[18] Chihuahua[22]
Malefica[23] M. deckerti[23] Texas[23] Upper Shale Formerly referred to Kritosaurus.[23]
Panoplosaurus[21] P. mirus[21] Texas[21]
Texacephale[12] T. langstoni[12] Texas[12] Low Upper Shale[12] A pachycephalosaur.
Yehuecauhceratops[24] Y. mudei[25] Coahuila[26] A centrosaurine.

Theropods

Indeterminate ornithomimid remains are known from the Upper Aguja Formation.[27] Indeterminate tyrannosaurid fossils are known from the Upper Aguja Formation of Texas and Mexico.[28]

Theropods of the Aguja Formation
Genus Species Location Member Material Notes Images
cf. Tyrannosauridae[28] Indeterminate[28] Texas[28]
cf. Dromaeosaurus[29] Indeterminate[29] Texas[16]
Leptorhynchos L. gaddisi Texas[30] A caenagnathid
Ricardoestesia[31] R. cf. gilmorei[32] Texas[31]
R. isosceles[31] Texas[31]
Saurornitholestes[16] S. cf. langstoni[33] Texas[16]
cf. Troodon[34] Indeterminate[34] Texas[16]

Lepidosaurs

Lepidosaurs of the Aguja Formation
Genus Species Location Member Material Notes Images
Mosasauridae[8] Indeterminate[8] Ten Bits Ranch.[8] Rattlesnake Mountain sandstone member.[8] 1 partial vetebra.[8]

Turtles

Testudines of the Aguja Formation
Genus Species Location Member Material Notes Images
Chupacabrachelys[35] C. complexus[35] Big Bend, Texas. A complete skull, and a nearly complete skeleton. A bothremydid.
Terlinguachelys[9][36] T. fischbecki[9][36] Texas Rattlesnake Mountain Sandstone[9] A protostegid.
Testudines indeterminate[8] Morphotype 1[8] Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] A shell fragment.
Morphotype 2[8] Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] A shell fragment.
Morphotype 3[8] Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] A shell fragment.
Morphotype 4[8] Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] A shell fragment.

Bony Fish

Approximately 75 whole and broken fragments of coprolites are known from the Rattlesnake Mountain sandstone member, presumably from bony fish.[8]

Bony fish of the Aguja Formation
Genus Species Location Member Material Notes Images
Albula[8] A. sp.[8] Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "Approximately 385 complete and fragmentary teeth". A bonefish.
Eotexachara[37] E. malateres[37] Dentaries.[37] A characiform.
Lepidotes[8] L. sp.[8] Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "Approximately 106 complete and fragmentary teeth". A lepidotid.
Osteichthyes[8] Indeterminate species A Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 11 complete teeth.
Indeterminate species B Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 8 complete and fragmentary teeth.
Indeterminate species C Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 1 complete tooth.
Indeterminate species D Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 1 complete and 1 partial tooth.
Indeterminate Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] Approximately 462 complete and fragmentary teleost centra.
Paralbula[8] P. casei[8] Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "Approximately 130 complete and fragmentary teeth and tooth caps".
Primuluchara[37] P. laramidensis[37] Dentaries.[37] A characiform.
Stephanodus[8] S.?[8] Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "22 whole and fragmentary specimens". A pycnodont.

Cartilaginous fish

Cartilaginous fish of the Aguja Formation
Genus Species Location Member Material Notes Images
Brachyrhyzodus[8] B. wichitaensis Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "8 complete specimens".
Cantioscyllium[8] C. aff. meyeri Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 1 anterior tooth and 5 lateral teeth. A nurse shark.
Chiloscyllium[8] C. aff. greeni Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "Approximately 46 complete and fragmentary teeth".
Chondrichthyes[8] Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 23 placoid scales and 69 dermal scales. 4 morphotypes of placoid scales (A to D) present.
Cretalamna[8] C. appendiculata Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "3 fragmentary teeth".
Cretorectolobus[8] C. olsoni Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "20 complete and fragmentary teeth". A carpet shark.
Hybodus[8] H. sp. Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 2 specimens, one complete and one partial tooth. A hybodont.
Igdabatis[8] I. indicus? Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] A single incomplete tooth. A myliobatid.
Ischyrhiza[8] I. cf. avonicola Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "Five complete and fragmentary rostral teeth". A sawskate.
I. mira Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "Seven fragmentary rostral teeth and approximately 216 whole and fragmentary oral teeth". A sawskate.
Lonchidion[8] L. selachos Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 4 complete and 5 fragmentary teeth. A hybodont.
Myliobatiformes[8] Incertae sedis Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 3 complete specimens.
Protoplatyrhina[8] P. renae Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "63 complete and fragmentary teeth". A hypsobatid.
Ptychotrygon[8] P. agujaensis Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "Over 400 complete and fragmentary specimens". A sawskate.
P. triangularis Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "Over 163 complete and fragmentary specimens". A sawskate.
P. aff. cuspidata Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "Seven whole and fragmentary specimens". A sawskate.
P. sp. Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "7 fragmentary teeth". A sawskate.
Rhinobatos[8] R. casieri Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "14 complete and fragmentary specimens". A guitarfish.
Rhombodus[8] R. levis Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "15 complete and fragmentary specimens".
Scapanorhynchus[8] S. texanus Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "Approximately 165 complete and fragmentary anterior and lateral teeth, and 2 posterior teeth". A mitsukurinid.
Sclerorhynchidae[8] Morphotype 1 Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] One fragmentary specimen. A sawskate.
Morphotype 2 Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] One fragmentary specimen. A sawskate.
Morphotype 3 Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 3 fragmentary rostral teeth. A sawskate.
Morphotype 4 Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 16 complete and fragmentary specimens. A sawskate.
Squalicorax[8] S. kaupi Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "26 complete and fragmentary anterior and lateral teeth". An anacoracid.
S. pristodontus Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] 2 specimens. An anacoracid.
Squatina[8] S. hassei Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] A single complete specimen. An angelshark.
Texatrygon[8] T. hooveri Ten Bits Ranch. Rattlesnake Mountain sandstone member.[8] "Four complete and fragmentary specimens". A sawskate.

Invertebrates

Ammonites

Ammonites of the Aguja Formation
Genus Species Location Member Abundance Notes Images
Baculites B. mclearni
  • Rattlesnake Mountain Sandstone
  • Terlingua Creek Sandstone
Hoplitoplacenticeras H. plasticum Rattlesnake Mountain Sandstone
Pachydiscus P. paulsoni Rattlesnake Mountain Sandstone
Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

See also

References

  1. ^ Weishampel et al., 2004, "Dinosaur distribution (Late Cretaceous, North America).", pp.574-588
  2. ^ Manchester, Steven R.; Lehman, Thomas M.; Wheeler, Elisabeth A. (July 2010). "Fossil Palms (Arecaceae, Coryphoideae) Associated with Juvenile Herbivorous Dinosaurs in the Upper Cretaceous Aguja Formation, Big Bend National Park, Texas". International Journal of Plant Sciences. 171 (6): 679–689. doi:10.1086/653688. ISSN 1058-5893. S2CID 84762968.
  3. ^ a b c Fowler, Denver Warwick (2017-11-22). "Revised geochronology, correlation, and dinosaur stratigraphic ranges of the Santonian-Maastrichtian (Late Cretaceous) formations of the Western Interior of North America". PLOS ONE. 12 (11): e0188426. Bibcode:2017PLoSO..1288426F. doi:10.1371/journal.pone.0188426. ISSN 1932-6203. PMC 5699823. PMID 29166406.
  4. ^ Woodward, H. N. (2005). Bone histology of the sauropod dinosaur Alamosaurus sanjuanensis from the Javelina Formation, Big Bend National Park, Texas.
  5. ^ Sankey, J. (2010). Faunal composition and significance of high–diversity, mixed bonebeds containing Agujaceratops mariscalensis and other dinosaurs, Aguja Formation (Upper Cretaceous), Big Bend, Texas. In New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium (pp. 520-537).
  6. ^ Fowler, Denver W.; Fowler, Elizabeth A. Freedman (2020-06-05). "Transitional evolutionary forms in chasmosaurine ceratopsid dinosaurs: evidence from the Campanian of New Mexico". PeerJ. 8: e9251. doi:10.7717/peerj.9251. ISSN 2167-8359. PMC 7278894. PMID 32547873.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  7. ^ Prieto-Márquez, Albert; Wagner, Jonathan R.; Lehman, Thomas (2020-03-18). "An unusual 'shovel-billed' dinosaur with trophic specializations from the early Campanian of Trans-Pecos Texas, and the ancestral hadrosaurian crest" (PDF). Journal of Systematic Palaeontology. 18 (6): 461–498. doi:10.1080/14772019.2019.1625078. ISSN 1477-2019. S2CID 202018197.
  8. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch Schubert, Joseph (May 2013). Elasmobranch and osteichthyan fauna of the Rattlesnake Mountain Sandstone, Aguja Formation (Upper Cretaceous; Campanian), West Texas (Thesis thesis).
  9. ^ a b c d e f g h i "Aguja Formation (Upper Shale Member), Big Bend Region, Texas," in Sullivan and Lucas (2006). Page 16.
  10. ^ "The first mandible fragment of Deinosuchus (Eusuchia: Alligatoroidea) discovered in Coahuila, Mexico". ResearchGate. Retrieved 2016-03-27.
  11. ^ a b c d e "Abstract," Lucas, Sullivan, and Hunt (2006)
  12. ^ a b c d e Longrich, N. R.; Sankey, J.; Tanke, D. (2010). "Texacephale langstoni, a new genus of pachycephalosaurid (Dinosauria: Ornithischia) from the upper Campanian Aguja Formation, southern Texas, USA". Cretaceous Research. 31 (2): 274. doi:10.1016/j.cretres.2009.12.002.
  13. ^ Lehman, T.M.; Wick, S.L.; Barnes, K.R. (2016). "New specimens of horned dinosaurs from the Aguja Formation of West Texas, and a revision of Agujaceratops". Journal of Systematic Palaeontology. Online edition. doi:10.1080/14772019.2016.1210683.
  14. ^ a b c Wagner, Jonathan R.; Lehman, Thomas M. (2009-06-12). "An enigmatic new lambeosaurine hadrosaur (Reptilia: Dinosauria) from the Upper Shale member of the Campanian Aguja Formation of Trans-Pecos Texas". Journal of Vertebrate Paleontology. 29 (2): 605–611. doi:10.1671/039.029.0208. ISSN 0272-4634.
  15. ^ Listed as ?Gryposaurus sp. in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.
  16. ^ a b c d e f g h i j k l "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.
  17. ^ Prieto-Márquez, A. (2013). "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 of Systematic Palaeontology, (advance online publication) doi:10.1080/14772019.2013.770417
  18. ^ a b c "Dinosaur distribution (Texas and Chihuahua)." Weishampel, et al. (2004). Page 582 and 588.
  19. ^ "Table 23.1," in Weishampel, et al. (2004). Page 496.
  20. ^ Listed as Edmontonia cf. rugosidens in "Dinosaur distribution (Late Cretaceous; North America; Texas).", Weishampel et al., 2004, p.582
  21. ^ a b c d e f g West, Bryanna (2020). Campanian-Maastrictian Ankylosaurs of West Texas (PDF) (Thesis). Texas Tech University.
  22. ^ "Dinosaur distribution (Late Cretaceous; North America; Chihuahua)." Weishampel, et al. (2004). Page 588.
  23. ^ a b c d Prieto-Márquez, Albert; Wagner, Jonathan R. (2022-11-10). "A new 'duck-billed' dinosaur (Ornithischia: Hadrosauridae) from the upper Campanian of Texas points to a greater diversity of early hadrosaurid offshoots". Cretaceous Research. 143: 105416. doi:10.1016/j.cretres.2022.105416. ISSN 0195-6671. S2CID 253470207.
  24. ^ Rivera-Sylva, H.E.; Hendrick, B.P.; Dodson, P. (2016). "A Centrosaurine (Dinosauria: Ceratopsia) from the Aguja Formation (Late Campanian) of Northern Coahuila, Mexico". PLOS ONE. 11 (4): e0150529. Bibcode:2016PLoSO..1150529R. doi:10.1371/journal.pone.0150529. PMC 4830452. PMID 27073969.
  25. ^ Rivera-Sylva, H.E.; Hendrick, B.P.; Dodson, P. (2016). "A Centrosaurine (Dinosauria: Ceratopsia) from the Aguja Formation (Late Campanian) of Northern Coahuila, Mexico". PLOS ONE. 11 (4): e0150529. Bibcode:2016PLoSO..1150529R. doi:10.1371/journal.pone.0150529. PMC 4830452. PMID 27073969.
  26. ^ Rivera-Sylva, H.E.; Frey, E.; Stinnesbeck, W.; Guzman-Gutirrez, J.R.; Gonzalez-Gonzalez (2017). "Mexican ceratopsids: Considerations on their diversity and evolution". Journal of South American Earth Sciences. doi:10.1016/j.jsames.2017.01.008.
  27. ^ Sullivan, R.M., and Lucas, S.G. 2006. "The Kirtlandian land-vertebrate "age" – faunal composition, temporal position and biostratigraphic correlation in the nonmarine Upper Cretaceous of western North America[permanent dead link‍]." New Mexico Museum of Natural History and Science, Bulletin 35:7-29.
  28. ^ a b c d Mortimer, M (2004). "Tyrannosauroidea". The Theropod Database. Archived from the original on 2013-09-29. Retrieved 2007-08-21.
  29. ^ a b Listed as cf. Dromaeosaurus sp. in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.
  30. ^ Longrich, N. R.; Barnes, K.; Clark, S.; Millar, L. (2013). "Caenagnathidae from the Upper Campanian Aguja Formation of West Texas, and a Revision of the Caenagnathinae". Bulletin of the Peabody Museum of Natural History 54: 23. doi:10.3374/014.054.0102. edit
  31. ^ a b c d "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 581.
  32. ^ Listed as R. cf. gilmorei in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 581.
  33. ^ Listed as Saurornitholestes cf. langstoni in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.
  34. ^ a b Listed as cf. Troodon sp. in "Dinosaur distribution (Late Cretaceous; North America; Texas)." Weishampel, et al. (2004). Page 582.
  35. ^ a b Lehman, Thomas M.; Wick, Steven L. (2010). "Chupacabrachelys complexus, N. Gen. N. Sp. (testudines: Botheremydidae), from the Aguja Formation (campanian) of West Texas". Journal of Vertebrate Paleontology. 30 (6): 1709–1725. doi:10.1080/02724634.2010.520782. ISSN 0272-4634.
  36. ^ a b Lehman, Thomas M.; Tomlinson, Susan L. (November 2004). "Terlinguachelys fischbecki, a new genus and species of sea turtle (Chelonioidea: Protostegidae) from the Upper Cretaceous of Texas". Journal of Paleontology. 78 (6): 1163–1178. doi:10.1666/0022-3360(2004)078<1163:TFANGA>2.0.CO;2. ISSN 0022-3360.
  37. ^ a b c d e f Wick, Steven L. (2021-12-01). "New early Campanian characiform fishes (Otophysi: Characiformes) from West Texas support a South American origin for known Late Cretaceous characiforms from North America". Cretaceous Research. 128: 104993. doi:10.1016/j.cretres.2021.104993. ISSN 0195-6671.

Bibliography

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