View source for 2020 in amphibian paleontology

{{Year nav topic5|2020|amphibian paleontology|paleontology|science}}
This '''list of [[fossil]] [[amphibian]]s described in 2020''' is a list of new [[taxa]] of fossil amphibians that were [[binomial nomenclature|described]] during the year 2020, as well as other significant discoveries and events related to amphibian [[paleontology]] that occurred in 2020.

==New taxa==
{| class="wikitable sortable"  style="margin:auto; width:100%;"
|-
|}

===[[Temnospondyli]]===
{| class="wikitable sortable"  style="margin:auto; width:100%;"
|- 
!Name
!Novelty
!Status
!Authors
!Age
!Type locality
!Country
!Notes
!Images
|-
|
''[[Benthosuchus|Benthosuchus lukyanovi]]''<ref>{{Cite journal |author=B. I. Morkovin |year=2020 |title=A new benthosuchid (Amphibia: Temnospondyli) from the Lower Triassic of the Moscow Syncline |journal=Paleontological Journal |volume=54 |issue=4 |pages=401–409 |doi=10.1134/S0031030120040176 |bibcode=2020PalJ...54..401M |s2cid=221161848 |url=https://elibrary.ru/item.asp?id=42890267 |access-date=2021-01-09 |archive-date=2021-01-11 |archive-url=https://web.archive.org/web/20210111011756/https://www.elibrary.ru/item.asp?id=42890267 |url-status=live }}</ref>
|
Sp. nov
|
Valid
|
Morkovin
|
[[Early Triassic]]
|
|
{{Flag|Russia}}<br>({{Flag|Vologda Oblast}})
|
A [[benthosuchidae|benthosuchid]] 
|
|-
|
''[[Diploseira]]''<ref>{{cite journal |author=David W. Dilkes |year=2020 |title=Revision of the Early Permian Dissorophid ''{{‘}}Dissorophus{{’}} angustus'' (Temnospondyli: Dissorophoidea) |journal=Journal of Vertebrate Paleontology |volume=40 |issue=4 |pages=e1801704 |doi=10.1080/02724634.2020.1801704 |bibcode=2020JVPal..40E1704D |s2cid=225148088 }}</ref>
|
Gen. et comb. nov
|
Valid
|
Dilkes
|
Early Permian
|
[[Archer City Formation]]
|
{{Flag|United States}}<br>({{Flag|Texas}})
|
A [[Dissorophidae|dissorophid]] temnospondyl;<br /> a new genus for ''"[[Dissorophus]]" angustus''.
|
|-
|
''[[Korkonterpeton]]''<ref>{{cite journal |author1=Ralf Werneburg |author2=Stanislav Štamberg |author3=Jean-Sébastien Steyer |year=2020 |title=A new stereospondylomorph, ''Korkonterpeton kalnense'' gen. et sp. nov., from lower Permian of the Czech Krkonoše Piedmont Basin and a redescription of ''Intasuchus silvicola'' from the lower Permian of Russia (Temnospondyli, Amphibia) |journal=Fossil Imprint |volume=76 |issue=2 |pages=217–242 |doi=10.37520/fi.2020.019 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Werneburg, Štamberg & Steyer
|
[[Permian]] ([[Asselian]] to [[Artinskian]])
|
[[Prosečné Formation|Prosečné]]
|
{{Flag|Czech Republic}}
|
A [[Stereospondylomorpha|stereospondylomorph]] temnospondyl of uncertain phylogenetic placement.<br/> The type species is ''K. kalnense''.
|
|-
|
''[[Palodromeus]]''<ref>{{cite journal |author1=Rainer R. Schoch |author2=Amy C. Henrici |author3=Robert W. Hook |year=2020 |title=A new dissorophoid temnospondyl from the Allegheny Group (late Carboniferous) of Five Points, Mahoning County, Ohio (USA) |journal=Journal of Paleontology |volume=95 |issue=3 |pages=638–651 |doi=10.1017/jpa.2020.101 |s2cid=230607719 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Schoch, Henrici & Hook
|
Late [[Carboniferous]]
|
[[Allegheny Formation]]
|
{{Flag|United States}}<br>({{Flag|Ohio}})
|
An [[Olsoniformes|olsoniform]] [[Dissorophoidea|dissorophoid]] temnospondyl.<br /> Genus includes new species ''P. bairdi''.
|
|-
|
''[[Rastosuchus]]''<ref>{{Cite journal|author1=Eliseu Vieira Dias |author2=Sérgio Dias-da-Silva |author3=Cesar Leandro Schultz |year=2020 |title=A new short-snouted rhinesuchid from the Permian of southern Brazil |journal=Revista Brasileira de Paleontologia |volume=23 |issue=2 |pages=98–122 |doi=10.4072/rbp.2020.2.03 |doi-access=free |hdl=10183/229929 |hdl-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Dias, Dias-da-Silva & Schultz
|
[[Permian]]
|
[[Rio do Rasto Formation]]
|
{{Flag|Brazil}}
|
A [[Rhinesuchidae|rhinesuchid]].<br/>The type species is ''R. hammeri''.
|[[File:Rastosuchus_hammeri.png|200px]]
|-
|}

===[[Allocaudata]]===
{| class="wikitable sortable"  style="margin:auto; width:100%;"
|- 
!Name
!Novelty
!Status
!Authors
!Age
!Type locality
!Country
!Notes
!Images
|-
|
''[[Yaksha perettii|Yaksha]]''<ref>{{Cite journal|author1=Juan D. Daza|author2=Edward L. Stanley|author3=Arnau Bolet|author4=Aaron M. Bauer|author5=J. Salvador Arias|author6=Andrej Čerňanský|author7=Joseph J. Bevitt|author8=Philipp Wagner|author9=Susan E. Evans|year=2020|title=Enigmatic amphibians in mid-Cretaceous amber were chameleon-like ballistic feeders|url=https://discovery.ucl.ac.uk/id/eprint/10114312/|journal=Science|volume=370|issue=6517|pages=687–691|doi=10.1126/science.abb6005|pmid=33154135|bibcode=2020Sci...370..687D|s2cid=226254862|access-date=2021-01-09|archive-date=2021-01-11|archive-url=https://web.archive.org/web/20210111004742/https://discovery.ucl.ac.uk/id/eprint/10114312/|url-status=live}}</ref>
|
Gen. et sp. nov
|
Valid
|
Daza ''et al.''
|
Late Cretaceous (Cenomanian)
|
[[Burmese amber]]
|
{{Flag|Myanmar}}
|
An [[Albanerpetontidae|albanerpetontid]].<br /> The type species is ''Y. perettii''.
|[[File:Yaksha_perettii_skull_diagram.svg|200px]]
|-
|}

=== [[Anura (frog)|Anura]]ns ===
{| class="wikitable sortable"  style="margin:auto; width:100%;"
|- 
!Name
!Novelty
!Status
!Authors
!Age
!Type locality
!Country
!Notes
!Images
|-
|
''[[Calyptocephalella sabrosa]]''<ref>{{Cite journal|author1=Paula Muzzopappa |author2=Agustín G. Martinelli |author3=Juan P. Garderes |author4=Guillermo W. Rougier |year=2020 |title=Exceptional avian pellet from the Paleocene of Patagonia and description of its content: a new species of calyptocephalellid (Neobatrachia) anuran |journal=Papers in Palaeontology |volume=7 |issue=2 |pages=1133–1146 |doi=10.1002/spp2.1333 |doi-access=free }}</ref>
|
Sp. nov
|
Valid
|
Muzzopappa ''et al.''
|
[[Paleocene]] ([[Danian]])
|
[[Salamanca Formation]]
|
{{Flag|Argentina}}
|
A frog, a species of ''[[Calyptocephalella]]''.
|
|-
|
''[[Ceratophrys sagani]]''<ref>{{cite journal |author1=Lucas A. Barcelos |author2=Diego Almeida-Silva |author3=Charles M. D. Santos |author4=Vanessa K. Verdade |year=2020 |title=Description of a new species of fossil ''Ceratophrys'' (Anura: Ceratophryidae) from Versalles Cave, São Paulo, Brazil |journal=Journal of Vertebrate Paleontology |volume=40 |issue=3 |pages=e1811293 |doi=10.1080/02724634.2020.1811293 |bibcode=2020JVPal..40E1293B |s2cid=225136948 }}</ref>
|
Sp. nov
|
Valid
|
Barcelos ''et al.''
|
Probably late Pleistocene–early Holocene
|

|
{{Flag|Brazil}}
|
A [[Ceratophrys|South American horned frog]].
|
|-
|
''[[Kururubatrachus]]''<ref>{{Cite journal|author1=Federico Agnolin |author2=Ismar Souza Carvalho |author3=Alexis M. Aranciaga Rolando |author4=Fernando E. Novas |author5=José Xavier-Neto |author6=José Artur Ferreira Gomes Andrade |author7=Francisco Idalécio Freitas |year=2020 |title=Early Cretaceous neobatrachian frog (Anura) from Brazil sheds light on the origin of modern anurans |journal=Journal of South American Earth Sciences |volume=101 |pages=Article 102633 |doi=10.1016/j.jsames.2020.102633 |bibcode=2020JSAES.10102633A |s2cid=218957427 }}</ref>
|
Gen. et sp. nov
|
In press
|
Agnolin ''et al.''
|
[[Early Cretaceous]] ([[Aptian]])
|
[[Crato Formation|Crato]]
|
{{Flag|Brazil}}
|
A [[neobatrachia]]n frog resembling extant members of [[Hyloidea]]. Genus includes new species ''K. gondwanicus''.
| 
|-
|}

===[[Caudata]]===
{| class="wikitable sortable"  style="margin:auto; width:100%;"
|- 
!Name
!Novelty
!Status
!Authors
!Age
!Type locality
!Country
!Notes
!Images
|-
| 
''[[Balveherpeton]]''<ref>{{cite journal |author1=Pavel P. Skutschas |author2=Veniamin V. Kolchanov |author3=Achim H. Schwermann |year=2020 |title=First salamander from the Lower Cretaceous of Germany |journal=Cretaceous Research |volume=116 |pages=Article 104606 |doi=10.1016/j.cretres.2020.104606 |bibcode=2020CrRes.11604606S |s2cid=225440583 }}</ref>
| 
Gen. et sp. nov
| 
In press
|
Skutschas, Kolchanov & Schwermann
|
[[Early Cretaceous]] ([[Barremian]]–[[Aptian]])
|

|
{{Flag|Germany}}
|
A [[Salamandroidea|salamandroid]] salamander. Genus includes new species ''B. hoennetalensis''.
|
|-
|
''[[Egoria]]''<ref>{{Cite journal|author1=Pavel Skutschas |author2=Veniamin Kolchanov |author3=Sergey Krasnolutskii |author4=Alexander Averianov |author5=Rico Schellhorn |author6=Julia Schultz |author7=Thomas Martin |year=2020 |title=A new small-sized stem salamander from the Middle Jurassic of Western Siberia, Russia |journal=PLOS ONE |volume=15 |issue=2 |pages=e0228610 |doi=10.1371/journal.pone.0228610 |pmid=32074114 |pmc=7029856 |bibcode=2020PLoSO..1528610S |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Skutschas ''et al.''
|
[[Middle Jurassic]] ([[Bathonian]])
|
[[Itat Formation]]
|
{{Flag|Russia}}<br>({{Flag|Krasnoyarsk Krai}})
|
A [[Crown group#Stem groups|stem]]-[[salamander]]. The type species is ''E. malashichevi''.
| 
|-
|
''[[Palaeoproteus|Palaeoproteus miocenicus]]''<ref>{{Cite journal|author1=Davit Vasilyan |author2=Vadym Yanenko |year=2020 |title=The last ''Palaeoproteus'' (Urodela: Batrachosauroididae) of Europe |journal=Scientific Reports |volume=10 |issue=1 |pages=Article number 2733 |doi=10.1038/s41598-020-59255-1 |pmid=32066790 |pmc=7026125 |bibcode=2020NatSR..10.2733V }}</ref>
|
Sp. nov
|
Valid
|
Vasilyan & Yanenko
|
[[Miocene]] ([[Vallesian]])
|

|
{{Flag|Austria}}<br>
{{Flag|Ukraine}}
|
A [[salamander]] belonging to the family [[Batrachosauroididae]]
|
|-
|}

=== Others ===
{| class="wikitable sortable" style="margin:auto; width:100%;"
|- 
!Name
!Novelty
!Status
!Authors
!Age
!Type locality
!Country
!Notes
!Images
|-
| ''[[Brittagnathus]]''<ref>{{Cite journal|author1=Per E. Ahlberg|author2=Jennifer A. Clack|year=2020|title=The smallest known Devonian tetrapod shows unexpectedly derived features|journal=Royal Society Open Science|volume=7|issue=4|pages=Article ID 192117|bibcode=2020RSOS....792117A|doi=10.1098/rsos.192117|pmc=7211834|pmid=32431888}}</ref>
| Gen. et sp. nov
| Valid
| [[Per E. Ahlberg|Ahlberg]] & [[Jenny Clack|Clack]]
| [[Devonian]] ([[Famennian]])
| [[Britta Dal Formation|Britta Dal]]
| {{Flag|Greenland}}
| A [[Basal (phylogenetics)|basal]] [[tetrapod]]. The type species is ''B. minutus''.
|
|-
|''[[Leptoropha|Leptoropha minima]]''<ref>{{Cite journal|author=V. V. Bulanov|year=2020|title=A new ''Leptoropha'' (Kotlassiidae, Seymouriamorpha) species from the Upper Urzhumian of European Russia|url=https://elibrary.ru/item.asp?id=42725919|journal=Paleontological Journal|volume=54|issue=3|pages=290–296|doi=10.1134/S0031030120030053|bibcode=2020PalJ...54..290B |s2cid=219959325|access-date=2021-01-09|archive-date=2021-01-12|archive-url=https://web.archive.org/web/20210112020848/https://www.elibrary.ru/item.asp?id=42725919|url-status=live}}</ref>
|Sp. nov
|Valid
|Bulanov
|[[Permian]]
|
|{{Flag|Russia}}<br>({{Flag|Tatarstan}})
|A member of [[Seymouriamorpha]]
|
|-
|''[[Microphon terminalis]]''<ref>{{Cite journal|author=V. V. Bulanov|year=2020|title=A new kotlassiid (Amphibia, Seymouriamorpha) from the terminal Permian of Eastern Europe|journal=Paleontological Journal|volume=54|issue=7|pages=757–768|doi=10.1134/S0031030120070035|bibcode=2020PalJ...54..757B |s2cid=229292215}}</ref>
|Sp. nov
|Valid
|Bulanov
|Late Permian
|
|{{Flag|Russia}}<br>({{Flag|Vladimir Oblast}})
|A member of Seymouriamorpha belonging to the family [[Kotlassiidae]].
|
|-
|''[[Seroherpeton]]''<ref>{{Cite journal|author1=Jianye Chen|author2=Jun Liu|year=2020|title=The youngest occurrence of embolomeres (Tetrapoda: Anthracosauria) from the Sunjiagou Formation (Lopingian, Permian) of North China|journal=Fossil Record|volume=23|issue=2|pages=205–213|doi=10.5194/fr-23-205-2020|bibcode=2020FossR..23..205C |doi-access=free}}</ref>
|Gen. et sp. nov
|Valid
|Chen & Liu
|[[Permian]] ([[Wuchiapingian]])
|[[Sunjiagou Formation|Sunjiagou]]
|{{Flag|China}}
|A member of [[Embolomeri]]. The type species is ''S. yangquanensis''.
|[[File:Seroherpeton.png|200px]]
|-
|''[[Steenerpeton]]''<ref name="Steenerpeton">{{cite journal|author1=Arjan Mann|author2=Bryan M. Gee|author3=Jason D. Pardo|author4=David Marjanović|author5=Gabrielle R. Adams|author6=Ami S. Calthorpe|author7=Hillary C. Maddin|author8=Jason S. Anderson|year=2020|title=Reassessment of historic 'microsaurs' from Joggins, Nova Scotia, reveals hidden diversity in the earliest amniote ecosystem|journal=Papers in Palaeontology|volume=6|issue=4|pages=605–625|doi=10.1002/spp2.1316|bibcode=2020PPal....6..605M |s2cid=218925814}}</ref>
|Gen. et sp. nov
|Valid
|Mann ''et al.''
|[[Carboniferous]] ([[Pennsylvanian (geology)|Pennsylvanian]])
|[[Joggins Formation|Joggins]]
|{{Flag|Canada}}<br>({{Flag|Nova Scotia}})
|A [[recumbirostra]]n "[[Microsauria|microsaur]]". Genus includes new species ''S. silvae''.
|
|}

==Research==
* A study on the evolution of terrestrial locomotion in early tetrapods, based on data from 40 three-dimensionally preserved [[Humerus|humeri]] from extinct [[Tetrapodomorpha|tetrapodomorphs]] spanning the fin-to-limb transition, is published by Dickson ''et al.'' (2020).<ref>{{Cite journal|author1=Blake V. Dickson |author2=Jennifer A. Clack |author3=Timothy R. Smithson |author4=Stephanie E. Pierce |year=2020 |title=Functional adaptive landscapes predict terrestrial capacity at the origin of limbs |journal=Nature |volume=589 |issue=7841 |pages=242–245 |doi=10.1038/s41586-020-2974-5 |pmid=33239789 |s2cid=227176144 }}</ref>
* A study aiming to determine the potential significance of tides for the evolution of bony fish and early tetrapods from the Late Silurian to early Late Devonian is published by Byrne ''et al.'' (2020).<ref>{{cite journal |author1=H. M. Byrne |author2=J. A. M. Green |author3=S. A. Balbus |author4=P. E. Ahlberg |year=2020 |title=Tides: A key environmental driver of osteichthyan evolution and the fish-tetrapod transition? |journal=Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences |volume=476 |issue=2242 |pages=Article ID 20200355 |doi=10.1098/rspa.2020.0355 |pmid=33223936 |pmc=7655770 |bibcode=2020RSPSA.47600355B }}</ref>
* A [[fibula]] of a member of the family [[Crassigyrinus|Crassigyrinidae]] (otherwise known from the [[Viséan]]) is described from the [[Tournaisian]] of [[Blue Beach]] ([[Nova Scotia]], [[Canada]]) by Lennie, Mansky & Anderson (2020).<ref>{{Cite journal|author1=Kendra I. Lennie |author2=Chris F. Mansky |author3=Jason S. Anderson |year=2020 |title=New ''Crassigyrinus''-like fibula from the Tournaisian (earliest Carboniferous) of Nova Scotia |journal=Canadian Journal of Earth Sciences |volume=57 |issue= 11|pages= 1365–1369|doi=10.1139/cjes-2019-0128 |bibcode=2020CaJES..57.1365L |s2cid=225160164 }}</ref>
* A study on the bone [[histology]] of ''[[Dvinosaurus]] campbelli'' is published by Uliakhin, Skutschas & Saburov (2020).<ref>{{Cite journal |author1=A. V. Uliakhin |author2=P. P. Skutschas |author3=P. G. Saburov |year=2020 |title=Histology of ''Dvinosaurus campbelli'' (Temnospondyli, Dvinosauria) from the Late Permian locality Gorokhovets, Vladimir Region |journal=Paleontological Journal |volume=54 |issue=6 |pages=632–639 |doi=10.1134/S0031030120060106 |bibcode=2020PalJ...54..632U |s2cid=227131135 |url=https://www.elibrary.ru/item.asp?id=43961965 |access-date=2021-01-09 |archive-date=2021-10-27 |archive-url=https://web.archive.org/web/20211027213443/https://www.elibrary.ru/ip_restricted.asp?rpage=https%3A%2F%2Fwww%2Eelibrary%2Eru%2Fitem%2Easp%3Fid%3D43961965 |url-status=live }}</ref>
* A study evaluating the effects of [[Ontogeny|ontogenetic]] disparity of known [[Trematopidae|trematopid]] specimens on reconstructions of the phylogenetic relationships of trematopids is published by Gee (2020).<ref>{{Cite journal|author=Bryan M. Gee |year=2020 |title=Size matters: the effects of ontogenetic disparity on the phylogeny of Trematopidae (Amphibia: Temnospondyli) |journal=Zoological Journal of the Linnean Society |volume=190 |issue=1 |pages= 79–113|doi=10.1093/zoolinnean/zlz170 }}</ref>
* Redescription of ''[[Actiobates]] peabodyi'', including an updated description of the skull and the first description of the postcranial skeleton, is published by Gee & [[Robert R. Reisz|Reisz]] (2020).<ref>{{Cite journal|author1=Bryan M. Gee |author2=Robert R. Reisz |year=2020 |title=A redescription of the late Carboniferous trematopid ''Actiobates peabodyi'' from Garnett, Kansas |journal=The Anatomical Record |volume=303 |issue=11 |pages=2821–2838 |doi=10.1002/ar.24381 |pmid=32003550 |s2cid=210982434 |doi-access=free }}</ref>
* A study on the suture pattern in the skull and on the mandible anatomy of ''[[Cacops]] aspidephorus'' is published by Anderson, Scott & Reisz (2020).<ref>{{Cite journal|author1=Jason S. Anderson |author2=Diane Scott |author3=Robert R. Reisz |year=2020 |title=The anatomy of the dermatocranium and mandible of ''Cacops aspidephorus'' Williston, 1910 (Temnospondyli: Dissorophidae), from the Lower Permian of Texas |journal=Journal of Vertebrate Paleontology |volume=40 |issue=2 |pages=e1776720 |doi=10.1080/02724634.2020.1776720 |bibcode=2020JVPal..40E6720A |s2cid=222213227 |hdl=1880/113830 |url=https://figshare.com/articles/journal_contribution/12911527 |hdl-access=free }}</ref>
* New [[Amphibamiformes|amphibamiform]] specimen with exceptionally preserved [[lissamphibia]]n-like integumentary structures, including the first evidence of toepad structures in a temnospondyl body fossil, is described from the [[Mazon Creek fossil beds]] by Mann & Gee (2020).<ref>{{Cite journal|author1=Arjan Mann |author2=Bryan M. Gee |year=2020 |title=Lissamphibian-like toepads in an exceptionally preserved amphibamiform from Mazon Creek |journal=Journal of Vertebrate Paleontology |volume=39 |issue=6 |pages=e1727490 |doi=10.1080/02724634.2019.1727490 |s2cid=216173387 }}</ref>
* Description of the anatomy of the skull of ''[[Pasawioops]] mayi'', and a study on the ontogeny of this taxon, is published by Atkins ''et al.'' (2020).<ref>{{Cite journal|author1=Jade B. Atkins |author2=Peter Sourges |author3=Nadia B. Fröbisch |author4=Robert R. Reisz |author5=Hillary C. Maddin |year=2020 |title=Late ontogeny in the small Early Permian amphibamiform dissorophoid ''Pasawioops mayi'' |journal=Journal of Vertebrate Paleontology |volume=40 |issue=2 |pages=e1772800 |doi=10.1080/02724634.2020.1772800 |bibcode=2020JVPal..40E2800A |s2cid=222210249 }}</ref>
* A study on growth patterns in ''[[Doleserpeton]] annectens'', as indicated by bone [[histology]], is published by Gee, Haridy & Reisz (2020).<ref>{{Cite journal|author1=Bryan M. Gee |author2=[[Yara Haridy]] |author3=Robert R. Reisz |year=2020 |title=Histological skeletochronology indicates developmental plasticity in the early Permian stem lissamphibian ''Doleserpeton annectens'' |journal=Ecology and Evolution |volume=10 |issue=4 |pages=2153–2169 |doi=10.1002/ece3.6054 |pmid=32128146 |pmc=7042763 |bibcode=2020EcoEv..10.2153G }}</ref>
* A study on a specimen of ''[[Benthosuchus]] korobkovi'' from the [[Olenekian]] of [[Russia]] affected by a [[Neoplasm|neoplastic]] bone lesion in its jaw, representing the earliest case of such lesion in a tetrapod reported so far, is published by Novikov ''et al.'' (2020), who propose a non-[[Animal tooth development|odontogenic]] [[osteoma]] as the most likely diagnosis.<ref>{{Cite journal |author1=I. V. Novikov |author2=P. A. Haiduk |author3=A. V. Gribanov |author4=А. N. Ivanov |author5=А. V. Novikov |author6=I. A. Starodubtseva |year=2020 |title=The earliest case of neoplastic bone lesion in tetrapods |journal=Paleontological Journal |volume=54 |issue=1 |pages=68–72 |doi=10.1134/S0031030120010074 |bibcode=2020PalJ...54...68N |s2cid=212938753 |url=https://elibrary.ru/item.asp?id=41695139 |access-date=2021-01-09 |archive-date=2021-01-12 |archive-url=https://web.archive.org/web/20210112031659/https://elibrary.ru/item.asp?id=41695139 |url-status=live }}</ref>
* Redescription and a study on the phylogenetic relationships of ''[[Aphaneramma]] kokeni'' is published by Maisch (2020), who considers ''A. kokeni'' to be a valid taxon.<ref>{{Cite journal|author=Michael W. Maisch |year=2020 |title=''Aphaneramma kokeni'' (von Huene, 1920), a lonchorhynchine trematosaurid (Amphibia: Temnospondyli) from the Lower Triassic of Pakistan |journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |volume=295 |issue=3 |pages=211–241 |doi=10.1127/njgpa/2020/0879 |s2cid=216325073 }}</ref>
* A study on the impact of local climatic and environmental conditions on growth patterns of the skeleton of ''[[Panthasaurus]] maleriensis'' is published by Teschner ''et al.'' (2020).<ref>{{Cite journal|author1=Elżbieta M. Teschner |author2=Sanjukta Chakravorti |author3=Dhurjati P. Sengupta |author4=Dorota Konietzko-Meier |year=2020 |title=Climatic influence on the growth pattern of ''Panthasaurus maleriensis'' from the Late Triassic of India deduced from paleohistology |journal=PeerJ |volume=8 |pages=e9868 |doi=10.7717/peerj.9868 |pmid=33194360 |pmc=7485487 |doi-access=free }}</ref>
* Evidence of the presence of five [[Metacarpal bones|metacarpals]] in a specimen of ''Metoposaurus krasiejowensis'' from the Upper Triassic of [[Poland]] is presented by Konietzko-Meier ''et al.'' (2020), who interpret this finding as evidence of [[Dactyly#Pentadactyly|pentadactyly]] of the [[Manus (anatomy)|manus]] of ''M. krasiejowensis'', showing that the presence of a five-digit manus among Temnospondyli was possible.<ref>{{Cite journal|author1=Dorota Konietzko-Meier |author2=Elżbieta M. Teschner |author3=Adam Bodzioch |author4=P. Martin Sander |year=2020 |title=Pentadactyl manus of the ''Metoposaurus krasiejowensis'' from the Late Triassic of Poland, the first record of pentadactyly among Temnospondyli |journal=Journal of Anatomy |volume=237 |issue= 6|pages= 1151–1161|doi=10.1111/joa.13276 |pmid=32707603 |pmc=7704227 |s2cid=225501640 }}</ref>
* New fossil material of [[Albanerpetontidae|albanerpetontids]] is described from the lower [[Campanian]] [[Aguja Formation]] ([[Texas]], [[United States]]) by Wick (2020), who interprets this finding as indicating that albanerpetontids were locally abundant there and also widespread throughout much of the Western Interior of North America by early Campanian time.<ref>{{cite journal |author=Steven L. Wick |year=2020 |title=Albanerpetontids (Lissamphibia, Albanerpetontidae) from the Aguja Formation (lower Campanian) of West Texas, USA |journal=Canadian Journal of Earth Sciences |volume=58 |issue=2 |pages= 141–149|doi=10.1139/cjes-2020-0071 |s2cid=225381667 }}</ref>
* A review of the [[caecilian]] fossil record is published by Santos, [[Michel Laurin|Laurin]] & Zaher (2020).<ref>{{Cite journal|author1=Rodolfo Otávio Santos |author2=Michel Laurin |author3=Hussam Zaher |year=2020 |title=A review of the fossil record of caecilians (Lissamphibia: Gymnophionomorpha) with comments on its use to calibrate molecular timetrees |journal=Biological Journal of the Linnean Society |volume=131 |issue=4 |pages=737–755 |doi=10.1093/biolinnean/blaa148 |doi-access=free }}</ref>
* New specimen of ''[[Triassurus]] sixtelae'' is described from the [[Triassic]] of [[Kyrgyzstan]] by Schoch, Werneburg & Voigt (2020), who identify this species as the oldest known [[Crown group#Stem groups|stem-group]] salamander.<ref>{{Cite journal|author1=Rainer R. Schoch |author2=Ralf Werneburg |author3=Sebastian Voigt |year=2020 |title=A Triassic stem-salamander from Kyrgyzstan and the origin of salamanders |journal=Proceedings of the National Academy of Sciences of the United States of America |volume=117 |issue=21 |pages=11584–11588 |doi=10.1073/pnas.2001424117 |pmid=32393623 |pmc=7261083 |bibcode=2020PNAS..11711584S |doi-access=free }}</ref>
* A study on the skeletal anatomy and phylogenetic relationships of ''[[Chunerpeton]] tianyiense'' is published by Rong ''et al.'' (2020).<ref>{{cite journal |author1=Yu-Fen Rong |author2=Davit Vasilyan |author3=Li-Ping Dong |author4=Yuan Wang |year=2020 |title=Revision of ''Chunerpeton tianyiense'' (Lissamphibia, Caudata): is it a cryptobranchid salamander? |journal=Palaeoworld |volume=30 |issue=4 |pages=708–723 |doi=10.1016/j.palwor.2020.12.001 |doi-access=free }}</ref>
* A study on the diversity of skull shape in extant and fossil ribbed and crocodile newts, the relationship between their skull shape and ecological and reproductive traits, and its implications for the knowledge of the ecology of ''[[Chelotriton]]'', is published by Pogoda ''et al.'' (2020).<ref>{{Cite journal|author1=Peter Pogoda |author2=Marcus Zuber |author3=Tilo Baumbach |author4=Rainer R. Schoch |author5=Alexander Kupfer |year=2020 |title=Cranial shape evolution of extant and fossil crocodile newts and its relation to reproduction and ecology |journal=Journal of Anatomy |volume=237 |issue=2 |pages=285–300 |doi=10.1111/joa.13201 |pmid=32297321 |pmc=7369190 }}</ref>
* New [[Pipimorpha|pipimorph]] fossil material, providing new information on the morphological diversity among the earliest pipimorphs in South America, is described from the [[Aptian]] [[Crato Formation]] ([[Brazil]]) by Báez, Muzzopappa & Moura (2020), who also redescribe ''[[Cratopipa]] novaolindensis''.<ref>{{Cite journal|author1=Ana M. Báez |author2=Paula Muzzopappa |author3=Geraldo J. Barbosa de Moura |year=2020 |title=The earliest records of pipimorph frogs from South America (Aptian, Crato Formation, Brazil): A critical evaluation |journal=Cretaceous Research |volume=121 |pages=Article 104728 |doi=10.1016/j.cretres.2020.104728 |s2cid=230581615 }}</ref>
* Right [[Ilium (bone)|ilium]] and a skull bone of a frog belonging to the genus ''[[Calyptocephalella]]'' are reported from the [[Eocene]] ([[Bartonian]]) [[La Meseta Formation]] ([[Antarctica]]) by Mörs, Reguero & Vasilyan (2020), representing the first record of a [[lissamphibia]]n in Antarctica reported so far.<ref>{{Cite journal|author1=Thomas Mörs |author2=Marcelo Reguero |author3=Davit Vasilyan |year=2020 |title=First fossil frog from Antarctica: implications for Eocene high latitude climate conditions and Gondwanan cosmopolitanism of Australobatrachia |journal=Scientific Reports |volume=10 |issue=1 |pages=Article number 5051 |doi=10.1038/s41598-020-61973-5 |pmid=32327670 |pmc=7181706 |bibcode=2020NatSR..10.5051M }}</ref>
* Partial [[humerus]] of a member of the genus ''[[Eleutherodactylus]]'' is described from the [[Oligocene]] [[San Sebastián Limestone|San Sebastian Formation]] ([[Puerto Rico]]) by Blackburn ''et al.'' (2020), representing the earliest fossil frog from any Caribbean island reported so far.<ref>{{Cite journal|author1=David C. Blackburn |author2=Rachel M. Keeffe |author3=María C. Vallejo-Pareja |author4=Jorge Vélez-Juarbe |year=2020 |title=The earliest record of Caribbean frogs: a fossil coquí from Puerto Rico |journal=Biology Letters |volume=16 |issue=4 |pages=Article ID 20190947 |doi=10.1098/rsbl.2019.0947 |pmid=32264782 |pmc=7211465 }}</ref>
* Redescription of the anatomy and a study on the phylogenetic relationships of ''[[Eldeceeon]] rolfei'' is published by Ruta, [[Jenny Clack|Clack]] & Smithson (2020).<ref>{{Cite journal|author1=Marcello Ruta |author2=Jennifer A. Clack |author3=Timothy R. Smithson |year=2020 |title=A review of the stem amniote ''Eldeceeon rolfei'' from the Viséan of East Kirkton, Scotland |journal=Earth and Environmental Science Transactions of the Royal Society of Edinburgh |volume=111 |issue=3 |pages=173–192 |doi=10.1017/S1755691020000079 |bibcode=2020EESTR.111..173R |doi-access=free }}</ref>
* A study on the [[long bone]] [[histology]], growth rate and the timing of the attainment of sexual maturity in [[Seymouriamorpha|seymouriamorphs]] is published by Jordi Estefa ''et al.'' (2020).<ref>{{Cite journal|author1=Jordi Estefa |author2=Jozef Klembara |author3=Paul Tafforeau |author4=Sophie Sanchez |year=2020 |title=Limb-bone development of seymouriamorphs: implications for the evolution of growth strategy in stem amniotes |journal=Frontiers in Earth Science |volume=8 |pages=Article 97 |doi=10.3389/feart.2020.00097 |bibcode=2020FrEaS...8...97E |s2cid=215756014 |doi-access=free }}</ref>
* A study on the anatomy of the braincase and [[otic capsule]] of ''[[Seymouria]]'' is published by Bazzana ''et al.'' (2020).<ref>{{Cite journal|author1=Kayla D. Bazzana |author2=Bryan M. Gee |author3=Joseph J. Bevitt |author4=Robert R. Reisz |year=2020 |title=Neurocranial anatomy of ''Seymouria'' from Richards Spur, Oklahoma |journal=Journal of Vertebrate Paleontology |volume=39 |issue=5 |pages=e1694535 |doi=10.1080/02724634.2019.1694535 |s2cid=213842156 }}</ref>
* Description of new postcranial material of ''Seymouria'' from the [[Richards Spur]] locality ([[Oklahoma]], United States), and a study on bone histology, life histories and evolution of terrestriality of seymouriamorphs, is published by Bazzana ''et al.'' (2020).<ref>{{Cite journal|author1=Kayla D. Bazzana |author2=Bryan M. Gee |author3=Joseph J. Bevitt |author4=Robert R. Reisz |year=2020 |title=Postcranial anatomy and histology of ''Seymouria'', and the terrestriality of seymouriamorphs |journal=PeerJ |volume=8 |pages=e8698 |doi=10.7717/peerj.8698 |pmid=32195050 |pmc=7069408 |doi-access=free }}</ref>
* A study on the anatomy of the skull of ''[[Euryodus]] dalyae'', providing new information on the anatomy of the braincase and mandible, is published by Gee, Bevitt & Reisz (2020).<ref>{{Cite journal|author1=Bryan M. Gee |author2=Joseph J. Bevitt |author3=Robert R. Reisz |year=2020 |title=Computed tomographic analysis of the cranium of the early Permian recumbirostran 'microsaur' ''Euryodus dalyae'' reveals new details of the braincase and mandible |journal=Papers in Palaeontology |volume=7 |issue=2 |pages=721–749 |doi=10.1002/spp2.1304 |s2cid=216359488 }}</ref>
* Description of the anatomy of the braincase and [[stapes]] of ''[[Diadectes]] absitus'' is published by Klembara ''et al.'' (2020).<ref>{{cite journal |author1=Jozef Klembara |author2=Miroslav Hain |author3=Andrej Čerňanský |author4=David S. Berman |author5=Amy C. Henrici |year=2020 |title=Anatomy of the neural endocranium and stapes of ''Diadectes absitus'' (Diadectomorpha) from the early Permian of Germany based on the high-resolution X-ray microcomputed tomography |journal=The Anatomical Record |volume=303 |issue=12 |pages=2977–2999 |doi=10.1002/ar.24376 |pmid=31967384 |s2cid=210870508 |doi-access=free }}</ref>

==References==
{{reflist}}

[[Category:2020 in paleontology]]
[[Category:2020 in science]]