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Diapsida (diapsid)

Reptilia

Synonyms
Synonymy list
YearName and author
1842Rysosteus Owen p. 155
1845Rysosteus Meyer p. 282
1903Diapsida Osborn p. 276
1904Diapsida Osborn p. 105
1917Diapsida Williston p. 414
1937Diapsida Roxo p. 44
1947Diapsida Olson pp. 44, 45
1966Diapsida Kuhn p. 31
1966Diapsida Olson p. 301
1985Diapsida Benton p. 153
1988Diapsida Carroll
1988Diapsida Gauthier et al. p. 139 fig. 4.4
1989Diapsida Gauthier et al. p. 343 fig. 9
1989Diapsida Rieppel
1992Diapsida Hecht p. 117
1993Diapsida Cvancara and Hoganson p. 15
1995Diapsida Laurin and Reisz p. 172 fig. 2
1998Diapsida Gao and Fox p. 306
1999Diapsida Nicholls p. 2
2002Utahdactylus Czerkas and Mickelson
2002Utahdactylus kateae Czerkas and Mickelson
2005Diapsida Müller
2005Diapsida Renesto p. 378
2006Utahdactylus Chure et al. p. 236
2006Utahdactylus kateae Chure et al. p. 236
2006Diapsida Jiang et al.
2006Diapsida Müller and Reisz fig. 2
2014Diapsida Chen et al.
2015Diapsida Chen et al.
2017Diapsida Wintrich et al.
2020Diapsida Klein et al.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
RankNameAuthor
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Diapsida()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Unr. Diapsida Osborn 1903 [diapsid]
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G. †Adelosaurus Watson 1914
+
Adelosaurus huxleyi Hancock and Howse 1870
Unr. †Araeoscelidia Williston 1913
+
Fm. †Araeoscelidae Williston 1910
+
G. †Araeoscelis Williston 1910
+
Araeoscelis casei Broom 1913
Araeoscelis gracilis Williston 1910
Invalid names: Ophiodeirus Broom 1913 [synonym]
G. †Kadaliosaurus Credner 1889
+
Kadaliosaurus priscus Credner 1889
G. †Zarcasaurus Brinkman et al. 1984
+
Zarcasaurus tanyderus Brinkman et al. 1984
Invalid names: Kadaliosauridae Williston 1912 [synonym]
G. †Halgaitosaurus Henrici et al. 2023
+
Halgaitosaurus gregarius Henrici et al. 2023
Fm. †Petrolacosauridae Peabody 1952
+
G. †Petrolacosaurus Lane 1945
+
+
Invalid names: Podargosaurus hibbardi Lane 1945 [synonym]
Invalid names: Podargosaurus Lane 1945 [synonym]
G. †Spinoaequalis deBraga and Reisz 1995
+
Spinoaequalis schultzei deBraga and Reisz 1995
Unr. †Archelosauria Crawford 2015
+
Invalid names: Sauropterygomorpha Wolniewicz et al. 2023 [empty]
Unr. Archosauromorpha Huene 1946 [archosauromorph]
+
G. †Aenigmastropheus Ezcurra et al. 2014
+
Aenigmastropheus parringtoni Ezcurra et al. 2014
G. †Arctosaurus Adams 1875
+
Arctosaurus osborni Adams 1875
Unr. †Crocopoda Ezcurra 2016
+
Unr. †Allokotosauria Nesbitt et al. 2015
+
Fm. †Azendohsauridae Nesbitt et al. 2015
+
G. †Azendohsaurus Dutuit 1972
G. †Shringasaurus Senqupta et al. 2017
G. †Coelodontognathus Ochev 1967
+
G. †Pamelaria Sen 2003
+
G. †Trilophosaurus Case 1928
+
+
Invalid names: Malerisaurus langstoni Chatterjee 1986 [synonym]
Trilophosaurus jacobsi Murry 1987
+
Invalid names: Trilophosaurus dornorum Mueller and Parker 2006 [synonym]
Trilophosaurus phasmalophos Kligman et al. 2020
Invalid names: Chinleogomphius Sues and Olsen 1993 [synonym]
Unr. †Archosauriformes Gauthier 1986
+
G. †Antarctanax Peecook et al. 2019
+
Antarctanax shackletoni Peecook et al. 2019
G. †Barberenasuchus Mattar 1987
+
G. †Chasmatosuchus Huene 1940
+
Chasmatosuchus magnus Ochev 1979
+
Invalid names: Gamosaurus lozovskii Ochev 1979 [synonym]
+
Invalid names: Tsylmosuchus samariensis Sennikov 1990 [synonym]
Invalid names: Gamosaurus Ochev 1979 [synonym], Jaikosuchus Sennikov 1990 [synonym]
G. †Collilongus Borsuk−Białynicka and Sennikov 2009
+
Collilongus rarus Borsuk−Białynicka and Sennikov 2009
G. †Crosbysaurus Heckert 2004
+
Crosbysaurus harrisae Heckert 2004
Unr. †Crurotarsi Sereno and Arcucci 1990
+
G. †Euscolosuchus Sues 1992
Invalid names: Crocodylotarsi Benton and Clark 1988 [empty], Ornithosuchia Huene 1908 [empty]
G. †Cuyosuchus Reig 1961
+
Cuyosuchus huenei Reig 1961
G. †Dyoplax Fraas 1867
+
Dyoplax arenaceus Fraas 1867
Fm. †Erythrosuchidae Watson 1917
+
G. †Chalishevia Ochev 1980
G. †Erythrosuchus Broom 1905
G. †Garjainia Ochev 1958
G. †Guchengosuchus Peng 1991
G. †Shansisuchus Young 1964
G. †Uralosaurus Sennikov 1995
G. †Vjushkovia Huene 1960
Unr. †Eucrocopoda Ezcurra 2016
+
Unr. Archosauria Cope 1869 [archosaur]
+
Invalid names: Avesuchia Benton 1999 [synonym]
G. †Asperoris Nesbitt et al. 2013
G. †Dorosuchus Sennikov 1989
G. †Euparkeria Broom 1913
G. †Polymorphodon Sues et al. 2020
Unr. †Proterochampsia Kischlat 2000
Fm. †Euparkeriidae Huene 1920
+
G. †Halazhaisuchus Wu 1982
G. †Osmolskina Borsuk-Bialynicka and Evans 2003
Invalid names: Turfanosuchus shageduensis Wu 1982 [nomen dubium]
G. †Fugusuchus Cheng 1980
+
G. †Graoullyodon Godefroit and Cuny 1997
+
Graoullyodon hacheti Godefroit and Cuny 1997
G. †Heteropelta Dalla Vecchia 2021
+
Heteropelta boboi Dalla Vecchia 2021
G. †Incertovenator Yanez et al. 2021
+
Incertovenator longicollum Yanez et al. 2021
G. †Kalisuchus Thulborn 1979
+
Kalisuchus rewanensis Thulborn 1979
G. †Litorosuchus Li et al. 2016
+
Litorosuchus somnii Li et al. 2016
G. †Lucianosaurus Hunt and Lucas 1993
+
Lucianosaurus wildi Hunt and Lucas 1993
G. †Marcianosuchus Sues et al. 2024
+
Marcianosuchus angustifrons Sues et al. 2024
G. †Protecovasaurus Heckert 2004
+
Protecovasaurus lucasi Heckert 2004
Fm. †Proterosuchidae Broom 1906
+
G. †Archosaurus Tatarinov 1960
G. †Blomosuchus Sennikov 1997
G. †Proterosuchus Broom 1903
+
Invalid names: Chasmatosaurus Haughton 1924 [synonym], Elaphrosuchus Broom 1946 [synonym]
Invalid names: Chasmatosauridae Haughton 1924 [synonym], Garjainiidae Ochev 1958 [synonym], Vjushkoviidae Huene 1960 [synonym]
Unr. †Protopyknosia Nesbitt et al. 2021
+
G. †Kranosaura Nesbitt et al. 2021
G. †Sarmatosuchus Sennikov 1994
+
Sarmatosuchus otschevi Sennikov 1994
G. †Syntomiprosopus Heckert et al. 2021
+
Syntomiprosopus sucherorum Heckert et al. 2021
G. †Tecovasaurus Hunt and Lucas 1994
+
Tecovasaurus murryi Hunt and Lucas 1994
G. †Triopticus Stocker et al. 2016
+
Triopticus primus Stocker et al. 2016
G. †Uatchitodon Sues 1991
+
Uatchitodon kroehleri Sues 1991
Uatchitodon schneideri Mitchell et al. 2010
G. †Vonhuenia Sennikov 1992
+
Vonhuenia friedrichi Sennikov 1992
G. †Zanclodon Plieninger 1846
+
Zanclodon arenaceus Fraas 1896
Zanclodon crenatus Plieninger 1846
Zanclodon laevis Plieninger 1846
+
Invalid names: Plateosaurus plieningeri Fraas 1896 [objective synonym]
Invalid names: Smilodon Plieninger 1846 [replaced], Zanclodon quenstedti Seeley 1892 [nomen nudum]
Invalid names: Erythrosuchia Bonaparte 1984 [empty], Plateosaurus ornatus Huene 1905 [nomen dubium], Typothorax punctulatus Rusconi 1947 [nomen dubium], Wangisuchus Young 1964 [nomen dubium], Wangisuchus tzeyii Young 1964 [nomen dubium]
G. †Boreopricea Tatarinov 1978
+
Boreopricea funerea Tatarinov 1978
G. †Eorasaurus Sennikov 1997
+
Eorasaurus olsoni Sennikov 1997
Fm. †Prolacertidae Parrington 1935
+
G. †Kadimakara Bartholomai 1979
+
Kadimakara australiensis Bartholomai 1979
G. †Malutinisuchus Ochev 1986
+
Malutinisuchus gratus Ochev 1986
G. †Prolacerta Parrington 1935
+
Prolacerta broomi Parrington 1935
+
Invalid names: Pricea longiceps Broom and Robinson 1948 [synonym]
G. †Vritramimosaurus Sennikov 2005
+
G. †Prolacertoides Young 1973
+
Unr. †Rhynchosauria Osborn 1903 [rhynchosaur]
+
G. †Eohyosaurus Butler et al. 2015
+
Eohyosaurus wolvaardti Butler et al. 2015
G. †Howesia Broom 1905
+
Howesia browni Broom 1905
Subor. †Mesosuchidia Haughton 1924
+
Fm. †Mesosuchidae Haughton 1924
+
Invalid names: Gnathodontidae Broom [synonym]
G. †Mesosuchus Watson 1912
+
Mesosuchus browni Watson 1912
G. †Noteosuchus Broom 1925
+
Noteosuchus colletti Watson 1912
Invalid names: Eosuchus Watson 1912 [replaced]
Unr. †Rhynchosauridae Cope 1871
+
G. †Bentonyx Langer et al. 2010
G. †Fodonyx Hone and Benton 2008
Unr. †Hyperodapedontinae Chatterjee 1969
G. †Langeronyx Ezcurra et al. 2016
G. †Rhynchosaurus Owen 1842
Subfm. †Stenaulorhynchinae Kuhn 1933
Invalid names: Rhynchosaurinae Nopcsa 1923 [empty], Scaphonychidae Huene 1948 [synonym]
Subor. †Rhynchosauroidea Nopcsa 1928
+
Invalid names: Howesiidae Watson 1917 [empty]
Invalid names: Gnathodontia Owen 1859 [synonym], Hyperodapedontidae Lydekker 1885 [empty]
G. †Tasmaniosaurus Camp and Banks 1978
+
Tasmaniosaurus triassicus Camp and Banks 1978
Invalid names: Ankistrodon Huxley 1865 [nomen dubium], Ankistrodon indicus Huxley 1865 [nomen dubium], Blomia Sennikov 1992 [nomen dubium], Blomia georgii Sennikov 1992 [nomen dubium], Tsylmosuchus Sennikov 1990 [nomen dubium], Tsylmosuchus donensis Sennikov 1990 [nomen dubium], Tsylmosuchus jakovlevi Sennikov 1990 [nomen dubium]
G. †Czatkowiella Borsuk−Białynicka and Evans 2009
+
Czatkowiella harae Borsuk−Białynicka and Evans 2009
G. †Elessaurus De-Oliveira et al. 2020
+
Elessaurus gondwanoccidens De-Oliveira et al. 2020
Superfm. †Helveticosauroidea Rieppel 1989
+
Fm. †Helveticosauridae Peyer 1955
+
G. †Eusaurosphargis Nosotti and Rieppel 2003
+
Eusaurosphargis dalsassoi Nosotti and Rieppel 2003
G. †Helveticosaurus Peyer 1955
+
G. †Jesairosaurus Jalil 1997
+
Jesairosaurus lehmani Jalil 1997
G. †Mecistotrachelos Fraser et al. 2007
+
Mecistotrachelos apeoros Fraser et al. 2007
Unr. †Prolacertiformes Camp 1945
+
G. †Cosesaurus Ellenberger and Villalta 1974
+
Cosesaurus aviceps Ellenberger and Villalta 1974
Fm. †Podopterygidae Sharov 1971
+
G. †Sharovipteryx Cowen 1981
+
Sharovipteryx mirabilis Sharov 1971
Invalid names: Podopteryx Sharov 1971 [replaced]
G. †Rhombopholis Owen 1866
+
Or. †Protorosauria Huxley 1871
+
G. †Fuyuansaurus Fraser et al. 2013
+
Fuyuansaurus acutirostris Fraser et al. 2013
G. †Pectodens Li et al. 2017
+
Pectodens zhenyuensis Li et al. 2017
Fm. †Protorosauridae Cope 1871
+
G. †Aphelosaurus Gervais 1858
+
Aphelosaurus lutevensis Gervais 1858
G. †Malerisaurus Chatterjee 1980
+
Malerisaurus robinsonae Chatterjee 1980
G. †Microcnemus Huene 1940
+
Microcnemus efremovi Huene 1940
+
Invalid names: Chasmatosuchus parvus Huene 1940 [synonym]
G. †Tridentinosaurus Dal Piaz 1931
Invalid names: Thecodontosaurus primus Huene 1905 [nomen dubium]
Fm. †Sharovipterygidae Tatarinov 1989
+
G. †Ozimek Dzik and Sulej 2016
+
Ozimek volans Dzik and Sulej 2016
Invalid names: Proterosauria Seeley 1887 [synonym]
G. †Protorosaurus Meyer 1830
+
Protorosaurus speneri Meyer 1832
Fm. †Tanystropheidae Gervais 1859
+
G. †Amotosaurus Fraser and Rieppel 2006
+
Amotosaurus rotfeldensis Fraser and Rieppel 2006
G. †Augustaburiania Sennikov 2011
+
Augustaburiania vatagini Sennikov 2011
G. †Dinocephalosaurus Li 2003
+
G. †Langobardisaurus Renesto 1994
+
Invalid names: Langobardisaurus rossii Bizzarini and Muscio 1995 [nomen dubium]
G. †Macrocnemus Nopcsa 1930
+
Macrocnemus anatinus Huene 1944
Macrocnemus bassanii Nopcsa 1930
Macrocnemus fuyuanensis Li et al. 2007
Macrocnemus obristi Fraser and Furrer 2013
G. †Protanystropheus Sennikov 2011
+
G. †Raibliania Dalla Vecchia 2020
+
Raibliania calligarisi Dalla Vecchia 2020
G. †Sclerostropheus Spiekman and Scheyer 2019
+
G. †Tanystropheus von Meyer 1852
+
Tanystropheus biharicus Jurcsák 1975
Tanystropheus haasi Rieppel 2001
Tanystropheus hydroides Spiekman et al. 2020
Invalid names: Chelyzoon Huene 1902 [nomen dubium], Chelyzoon blezingeri Huene 1902 [nomen dubium], Chelyzoon latum Huene 1902 [nomen dubium], Macroscelosaurus Münster 1852 [synonym], Nothosaurus blezingeri Fraas 1896 [nomen dubium], Pectenosaurus Huene 1902 [synonym], Procerosaurus Huene 1902 [synonym], Tanystrophaeus posthumus Huene 1908 [nomen dubium], Tribelesodon Bassani 1886 [synonym]
G. †Tanytrachelos Olsen 1979
+
Tanytrachelos ahynis Olsen 1979
Invalid names: Macroscelosauridae Kuhn 1935 [synonym], Tribelesodontidae Nopcsa 1923 [synonym]
Unr. †Teraterpetidae Sues 2003
+
G. †Teraterpeton Sues 2003
+
G. †Teyujagua Pinheiro et al. 2016
+
Teyujagua paradoxa Pinheiro et al. 2016
Fm. †Trilophosauridae Gregory 1945
+
G. †Spinosuchus Huene 1932
+
Spinosuchus caseanus Huene 1932
G. †Tricuspisaurus Robinson 1957
+
Tricuspisaurus thomasi Robinson 1957
G. †Variodens Robinson 1957
+
Variodens inopinatus Robinson 1957
Invalid names: Chasmatosuchus vjushkovi Ochev 1961 [nomen dubium], Exilisuchus Ochev 1979 [nomen dubium], Exilisuchus tubercularis Ochev 1979 [nomen dubium], Gwyneddosaurus Bock 1945 [nomen dubium], Megalancosauridae Olshevsky 1991 [empty], Ocolurtaia Rusconi 1947 [nomen dubium], Ocolurtaia arquata Rusconi 1947 [nomen dubium], Rhabdopelix longispinis Cope 1866 [nomen dubium]
G. †Dolerosaurus Butler 2013
+
Dolerosaurus trauthi Huene 1939
Unr. †Drepanosauromorpha Renesto et al. 2010
+
G. †Ancistronychus Gonçalves and Sidor 2019
+
Ancistronychus paradoxus Gonçalves and Sidor 2019
Fm. †Drepanosauridae Berman and Reisz 1992
+
G. †Avicranium Pritchard and Nesbitt 2017
+
Avicranium renestoi Pritchard and Nesbitt 2017
G. †Dolabrosaurus Berman and Reisz 1992
+
Dolabrosaurus aquatilis Berman and Reisz 1992
G. †Kyrgyzsaurus Alifanov and Kurochkin 2011
+
Kyrgyzsaurus bukhanchenkoi Alifanov and Kurochkin 2011
Unr. †Megalancosaurinae Renesto et al. 2010
+
G. †Drepanosaurus Pinna 1980
+
G. †Megalancosaurus Calzavara et al. 1981
+
Megalancosaurus endennae Renesto et al. 2010
Megalancosaurus preonensis Calzavara et al. 1981
G. †Skybalonyx Jenkins et al. 2021
+
Skybalonyx skapter Jenkins et al. 2021
G. †Unguinychus Pugh et al. 2024
+
Unguinychus onyx Pugh et al. 2024
Unr. †Elyurosauria Renesto et al. 2010
+
G. †Vallesaurus Renesto and Binelli 2006
+
Vallesaurus cenensis Renesto and Binelli 2006
Vallesaurus zorzinensis Renesto et al. 2010
G. †Hypuronector Colbert and Olsen 2001
+
Hypuronector limnaios Colbert and Olsen 2001
Unr. Eosuchia Broom 1914
+
G. †Aenigmasaurus Parrington 1953
+
Aenigmasaurus grallator Parrington 1953
Unr. †Avicephala Senter 2004
+
G. †Coelurosauravus Piveteau 1926
+
Coelurosauravus elivensis Piveteau 1926
+
Invalid names: Daedalosaurus madagascariensis Carroll 1978 [synonym]
Invalid names: Daedalosaurus Carroll 1978 [synonym], Gracilisaurus Weigelt 1930 [synonym]
G. †Longisquama Sharov 1970
+
Longisquama insignis Sharov 1970
Invalid names: Simiosauria Senter 2004 [empty]
Fm. †Heleosauridae Haughton 1924
+
G. †Heleophilus Broom 1909
G. †Heleosuchus Broom 1913
+
Unr. Neodiapsida Benton 1985
+
G. †Acallosuchus Long and Murry 1995
+
Acallosuchus rectori Long and Murry 1995
Fm. †Claudiosauridae Carroll 1981
+
G. †Claudiosaurus Carroll 1981
+
Claudiosaurus germaini Carroll 1981
Unr. †Euryapsida Colbert 1945
+
Or. †Araeosceloidea Nopcsa 1928
+
G. †Dictybolos Olson 1970
Invalid names: Synaptosauria Williston 1925 [synonym]
G. †Galesphyrus Broom 1914
+
Galesphyrus capensis Broom 1914
G. †Lacertulus Carroll and Thompson 1982
+
Lacertulus bipes Carroll and Thompson 1982
G. †Orovenator Reisz et al. 2011
+
Orovenator mayorum Reisz et al. 2011
G. †Palaeagama Broom 1926
+
Palaeagama vielhaueri Broom 1926
Subor. Sauria MacCartney 1802
+
Or. Autosauri Haeckel
+
Invalid names: Chamaeleontes Wiegmann [empty], Geckones Spix 1825 [empty]
Infraor. †Eolacertilia Robinson 1967
+
Invalid names: Fulengidae Carroll and Galton 1977 [empty], Naocephalus Cope 1872 [nomen dubium], Naocephalus porrectus Cope 1872 [nomen dubium]
Subor. Iguaniformes Hay 1930
+
Invalid names: Chamaeleonoidae Hay 1930 [empty], Iguanoidae Hay 1930 [empty]
G. †Lacertipus Haubold 1971
+
Lacertipus navajoensis Haubold 1971
Invalid names: Ascalabota Gilmore 1928 [invalid subgroup], Geckonidi Perrier 1928 [empty], Labyrinthodontidae d'Orbigny 1849 [empty], Lacertidi Perrier 1928 [empty], Mosasauriformes Hay 1930 [empty], Saurii Latreille 1800 [synonym], Vermilinguii Perrier 1928 [empty]
Unr. Sauria Gauthier 1984 [crown diapsid]
+
G. †Antarcticoolithus Legendre et al. 2020
+
Antarcticoolithus bradyi Legendre et al. 2020
Unr. †Choristodera Cope 1876 [choristodere]
+
G. †Coeruleodraco Matsumoto et al. 2019
Fm. †Cteniogenyidae Seiffert 1975
G. †Heishanosaurus Dong et al. 2020
G. †Hyphalosaurus Gao et al. 1999
+
Invalid names: Sinohydrosaurus Li et al. 1999 [objective synonym]
G. †Irenosaurus Efimov 1988
G. †Khurendukhosaurus Sigogneau-Russell and Efimov 1984
G. †Lazarussuchus Hecht 1992
G. †Monjurosuchus Endo 1940
Subor. †Neochoristodera Evans and Hecht 1993
+
Invalid names: Champsosauriformes Hay 1930 [replaced]
G. †Novapes Lee et al. 2020
G. †Pachystropheus von Huene 1935
G. †Philydrosaurus Gao and Fox 2005
G. †Shokawa Evans and Manabe 1999
Invalid names: Champsosauria Jaekel 1910 [synonym], Hyphalosauridae Gao and Fox 2005 [empty], Monjurosuchidae Endo 1940 [empty], Simoedosauria Dollo [synonym]
Unr. Lepidosauromorpha Benton 1983
+
G. †Anisodontosaurus Welles 1947
G. †Blomosaurus Tatarinov 1978
G. †Coartaredens Spencer and Storrs 2002
G. †Feralisaurus Cavicchini et al. 2020
G. †Fraxinisaura Schoch and Sues 2018
G. †Kudnu Bartholomai 1979
Superor. Lepidosauria Haeckel 1866 [lepidosaur]
Unr. Lepidosauriformes Gauthier et al. 1988
G. †Marmoretta Evans 1991
G. †Neosauroides Kim et al. 2017
G. †Paliguana Broom 1903
Fm. †Paliguanidae Broom 1926
G. †Sophineta Evans and Borsuk−Białynicka 2009
G. †Tamaulipasaurus Clark and Hernandez 1994
G. †Taytalura Martinez et al. 2021
G. †Vellbergia Sobral et al. 2020
G. †Vinitasaura Sues and Kligman 2021
Invalid names: Saurosternidae Haughton 1924 [empty]
G. †Saurosternon Huxley 1868
+
Saurosternon bainii Huxley 1868
+
Invalid names: Saurosternon baini Huxley [objective synonym]
G. †Sphodrosaurus Colbert 1960
+
Fm. †Weigeltisauridae Kuhn 1939
+
Subfm. †Glaurunginae Bulanov and Sennikov 2015
+
G. †Glaurung Bulanov and Sennikov 2015
G. †Rautiania Bulanov and Sennikov 2006
+
Rautiania alexandri Bulanov and Sennikov 2006
Rautiania minichi Bulanov and Sennikov 2006
G. †Wapitisaurus Brinkman 1988
+
Wapitisaurus problematicus Brinkman 1988
G. †Weigeltisaurus Kuhn 1939
+
Weigeltisaurus jaekeli Weigelt 1930
+
Invalid names: Gracilisaurus ottoi Weigelt 1930 [synonym]
Invalid names: Palaeochamaeleo Weigelt 1930 [replaced]
Invalid names: Coelurosauravidae Carroll 1978 [synonym]
Unr. †Younginiformes Romer 1933
+
G. †Acerosodontosaurus Currie 1980
+
Superfm. †Younginoidea Currie 1982
+
Fm. †Tangasauridae Haughton 1924
Fm. †Younginidae Broom 1914
Invalid names: Galesphyridae Currie 1981 [empty]
Invalid names: Acerosodontosauridae [empty], Noteosuchidae Broom 1925 [empty], Palaeagamidae Broom 1926 [empty]
G. †Horaffia Klein and Hagdorn 2014
+
Horaffia kugleri Klein and Hagdorn 2014
Or. †Hupehsuchia Carroll and Dong 1991
+
G. †Eohupehsuchus Chen et al. 2014
+
Eohupehsuchus brevicollis Chen et al. 2014
+
G. †Hupehsuchus Young and Dong 1972
+
Hupehsuchus nanchangensis Young and Dong 1972
G. †Nanchangasaurus Wang 1959
Subfm. †Parahupehsuchinae Chen et al. 2015
+
G. †Eretmorhipis Chen et al. 2015
+
Eretmorhipis carrolldongi Chen et al. 2015
G. †Parahupehsuchus Chen et al. 2014
+
Parahupehsuchus longus Chen et al. 2014
G. †Nanchangosaurus Wang 1959
+
Nanchangosaurus suni Wang 1959
Invalid names: Nanchangosauridae Wang 1959 [empty]
Unr. †Ichthyosauromorpha Motani et al. 2015
+
G. †Baisesaurus Ren et al. 2022
+
Baisesaurus robustus Ren et al. 2022
Unr. †Ichthyosauriformes Motani et al. 2015
+
Unr. †Ichthyopterygia Owen 1840
+
Unr. †Eoichthyosauria Motani 1999
+
Unr. †Grippidia Wiman 1929
Unr. †Ichthyosauria de Blainville 1835 [ichthyosaur]
Or. †Heteropinnatoidea Appleby 1979
+
Invalid names: Leptopterygiidae Kuhn 1934 [empty], Protoichthyosauridae Appleby 1979 [empty]
Invalid names: Ekbainacanthus Yakowlew 1902 [nomen dubium], Euichthyopterygia Motani 1999 [empty], Grippidia Wiman 1933 [empty], Grippoidea Ji et al. 2016 [empty], Ichthyoterus Rouiellier 1847 [nomen dubium], Latipinnatoidea Huene 1948 [empty], Macropterygius Huene 1922 [nomen dubium], Mixosauroidea Appleby 1979 [empty], Omphalosaurus merriami Maisch 2010 [nomen dubium], Pachygonosaurus von Huene 1916 [nomen dubium], Perrinosaurus Merriam 1938 [nomen dubium], Rotundopteryx Maisch and Matzke 2000 [nomen dubium], Spitsbergenosaurus Mazin 1981 [nomen dubium]
Unr. †Nasorostra Jiang et al. 2016
+
G. †Cartorhynchus Motani et al. 2015
+
Cartorhynchus lenticarpus Motani et al. 2015
G. †Sclerocormus Jiang et al. 2016
+
Sclerocormus parviceps Jiang et al. 2016
G. †Lanthanolania Modesto and Reisz 2002
+
Lanthanolania ivakhnenkoi Modesto and Reisz 2002
G. †Palacrodon Broom 1906
+
Palacrodon browni Broom 1906
+
Invalid names: Fremouwsaurus geludens Gow 1992 [synonym]
Invalid names: Fremouwsaurus Gow 1992 [synonym]
Subor. †Sauropterygia Owen 1859
+
G. †Atopodentatus Cheng et al. 2014
+
Atopodentatus unicus Cheng et al. 2014
Or. †Eosauropterygia Rieppel 1994
+
G. †Corosaurus Case 1936
+
Corosaurus alcovensis Case 1936
Fm. †Cymatosauridae von Huene
+
G. †Tanaisosaurus Sennikov 2001
+
Tanaisosaurus kalandadzei Sennikov 2001
G. †Dawazisaurus Cheng et al. 2016
+
Dawazisaurus brevis Cheng et al. 2016
G. †Diandongosaurus Shang et al. 2011
+
Diandongosaurus acutidentatus Shang et al. 2011
G. †Hispaniasaurus Marquez-Aliaga et al. 2017
+
Hispaniasaurus cranioelongatus Marquez-Aliaga et al. 2017
G. †Majiashanosaurus Jiang et al. 2014
+
Majiashanosaurus discocoracoidis Jiang et al. 2014
Fm. †Nothosauridae Baur 1889
+
G. †Brevicaudosaurus Shang et al. 2020
+
Brevicaudosaurus jiyangshanensis Shang et al. 2020
G. †Ceresiosaurus Peyer 1931
+
Ceresiosaurus lanzi Hänni 2004
G. †Germanosaurus Nopcsa 1928
+
Germanosaurus schafferi Arthaber 1924
Invalid names: Germanosaurus latissimus Gürich 1891 [nomen dubium]
G. †Lamprosauroides Schmidt 1927
+
Invalid names: Lamprosaurus Meyer 1860 [replaced]
G. †Metanothosaurus Yabe and Shikana 1948
G. †Micronothosaurus Haas 1963
+
Subfm. †Nothosaurinae Nopcsa 1923
+
G. †Lariosaurus Curioni 1847
+
Invalid names: Deirosaurus Owen 1854 [synonym], Eupodosaurus Boulenger 1891 [synonym], Macromerosauro Curioni 1863 [synonym], Macromerosaurus Cornalia 1854 [synonym], Macromirosaurus Curioni 1847 [synonym], Rhaeticonia Broili 1927 [synonym], Silvestrosaurus Kuhn-Schnyder 1990 [synonym]
G. †Nothosaurus Münster 1834
+
Nothosaurus cristatus Hinz et al. 2019
Nothosaurus edingerae Schultze 1970
Nothosaurus giganteus Münster 1834
+
Invalid names: Nothosaurus aduncidens Meyer 1855 [synonym], Nothosaurus andriani Meyer 1839 [synonym], Nothosaurus angustifrons Meyer and Plieninger 1844 [synonym], Nothosaurus baruthicus Geissler 1895 [synonym], Nothosaurus chelydrops Fraas 1896 [synonym], Opeosaurus suevicus Meyer 1847 [synonym], Paranothosaurus amsleri Peyer 1939 [synonym]
Nothosaurus haasi Rieppel et al. 1997
Nothosaurus jagisteus Rieppel 2001
Nothosaurus marchicus Koken 1893
+
Invalid names: Nothosaurus crassus Schröder 1914 [synonym], Nothosaurus oldenburgi Schröder 1914 [synonym], Nothosaurus procerus Schröder 1914 [synonym], Nothosaurus raabi Schröder 1914 [synonym], Nothosaurus schroederi Huene 1944 [synonym], Nothosaurus winterswijkensis Albers and Rieppel 2003 [synonym]
Nothosaurus mirabilis Münster 1834
+
Invalid names: Dracosaurus bronni Auct 1834 [synonym], Nothosaurus bergeri Meyer 1834 [synonym], Nothosaurus muensteri Meyer 1847 [synonym]
Nothosaurus occiduus Leidy 1870
+
Invalid names: Nothosaurus rostellatus Shang 2006 [objective synonym]
Nothosaurus tchernowi Haas 1980
Nothosaurus yangjuanensis Jiang et al. 2006
Nothosaurus zhangi Liu et al. 2014
Invalid names: Conchiosaurus clavatus Meyer 1833 [nomen dubium], Dracosaurus Munster 1834 [synonym], Elmosaurus Huene 1957 [synonym], Elmosaurus lelmensis Huene 1957 [nomen dubium], Kolposaurus Skuphos 1893 [synonym], Kolposaurus dichthadius Skuphos 1893 [nomen dubium], Metriorhynchus priscus Münster 1834 [nomen nudum], Nothosaurus hecki Fritsch 1894 [nomen dubium], Nothosaurus schimperi Meyer 1834 [nomen dubium], Nothosaurus unexpectus Young 1965 [nomen dubium], Nothosaurus venustus Munster 1834 [nomen dubium], Opeosaurus Meyer 1847 [synonym], Paranothosaurus Peyer 1939 [synonym], Plesiosaurus speciosus Munster 1834 [nomen nudum], Shingyisaurus Young 1965 [synonym], Simosaurus mougeoti Meyer 1847 [nomen dubium]
Invalid names: Nothosaurus cuvieri Quenstedt 1885 [nomen dubium]
Superfm. †Nothosauroidea Huene 1956
+
G. †Sanchiaosaurus Young 1965
+
Sanchiaosaurus dengi Young 1965
+
G. †Dianmeisaurus Shang and Li 2015
+
Dianmeisaurus gracilis Shang and Li 2015
Dianmeisaurus mutaensis Hu et al. 2024
G. †Odoiporosaurus Renesto et al. 2014
+
Odoiporosaurus teruzzii Renesto et al. 2014
G. †Prosantosaurus Klein et al. 2022
+
Prosantosaurus scheffoldi Klein et al. 2022
Superfm. †Pachypleurosauroidea Huene 1956
+
Fm. †Keichousauridae Young 1965
+
G. †Dianopachysaurus Liu et al. 2011
G. †Keichousaurus Young 1958
Fm. †Pachypleurosauridae Nopcsa 1928
+
G. †Anarosaurus Dames 1890
G. †Dactylosaurus Gürich 1884
G. †Doliovertebra Huene 1902
G. †Hanosaurus Young 1972
G. †Honghesaurus Xu et al. 2022
G. †Luopingosaurus Xu et al. 2023
G. †Neusticosaurus Seeley 1882
G. †Pachypleurosaurus Broili 1927
G. †Panzhousaurus Jiang et al. 2018
G. †Psilotrachelosaurus Nopsca 1928
G. †Serpianosaurus Rieppel 1989
Invalid names: Neusticosaurinae Seeley [empty], Pachypleurosaurinae Nopsca 1928 [empty]
Subor. †Pistosauroidea Baur 1887
+
G. †Chinchenia Young 1965
+
Chinchenia sungi Young 1965
G. †Cymatosaurus Fritsch 1894
+
Cymatosaurus erikae Maisch 2014
Cymatosaurus gracilis Schrammen 1899
Cymatosaurus latifrons Gürich 1884
+
Invalid names: Cymatosaurus silesiacus Schrammen 1899 [objective synonym]
Cymatosaurus minor Rieppel and Wernburg 1998
Invalid names: Cymatosaurus erythreus Huene 1944 [nomen dubium], Eurysaurus Gaudry 1878 [synonym], Proneusticosaurus Volz 1902 [synonym]
G. †Kwangsisaurus Young 1959
+
G. †Wangosaurus Ma et al. 2015
+
Wangosaurus brevirostris Ma et al. 2015
G. †Yunguisaurus Cheng et al. 2006
+
Yunguisaurus liae Cheng et al. 2006
Invalid names: Cymatosauria Huene 1944 [empty]
G. †Qianxisaurus Cheng et al. 2012
+
Qianxisaurus chajiangensis Cheng et al. 2012
G. †Wumengosaurus Jiang et al. 2008
+
Invalid names: Nothosaurus picardi Chop 1857 [nomen dubium]
G. †Ischyrosaurus Cope 1869
Subor. †Nanchangosauroidea Wang 1959
+
Invalid names: Nothosauravidae Kuhn 1964 [empty]
Or. †Nothosauria Baur 1889 [nothosaur]
+
Fm. †Lariosauridae Gervais 1859
+
G. †Phygosaurus Arthaber 1924
Invalid names: Macromirosauridae Baur 1886 [synonym]
G. †Partanosaurus Skuphos 1893
+
Partanosaurus zitteli Skuphos 1893
G. †Pontopus
Fm. †Simosauridae Nopcsa 1928
+
G. †Conchiosaurus Meyer 1833
G. †Paludidraco de Miguel Chaves et al. 2018
+
Paludidraco multidentatus de Miguel Chaves et al. 2018
G. †Simosaurus Meyer 1842
+
Simosaurus gaillardoti Meyer and Plieninger 1842
+
Invalid names: Ichthyosaurus lunevillensis Alberti 1837 [synonym], Simosaurus guilielmi Meyer 1847 [objective synonym]
Invalid names: Anarosauridae Jaekel 1910 [empty], Corosauridae Kuhn 1961 [empty], Germanosauridae Rieppel 2000 [empty], Neusticosauridae [empty], Proneusticosauridae Huene 1952 [empty]
Unr. †Pistosauria Baur 1890
+
G. †Augustasaurus Sander 1997
+
Augustasaurus hagdorni Sander 1997
G. †Bobosaurus Dalla Vecchia 2006
+
Bobosaurus forojuliensis Dalla Vecchia 2006
G. †Pistosaurus Meyer 1839
+
Pistosaurus longaevus Meyer 1839
+
Invalid names: Nothosaurus strunzi Geissler 1895 [synonym], Pistosaurus grandaevus Meyer 1839 [objective synonym]
Invalid names: Pistosauridae Zittel 1887 [empty]
Or. †Placodontia Cope 1871 [placodont]
+
G. †Chelyposuchus Romer 1966
Fm. †Cyamodontidae Nopcsa 1923
+
G. †Cyamodus von Meyer 1863
+
Cyamodus hildegardis Peyer 1931
Cyamodus kuhnschnyderi Nosotti and Pinna 1993
Cyamodus muensteri Agassiz 1834
+
Invalid names: Cyamodus laticeps Owen 1859 [synonym]
Cyamodus orientalis Wang et al. 2019
Cyamodus rostratus Münster 1839
Cyamodus tarnowitzensis Gürich 1884
Subor. †Cyamodontoidea Nopcsa 1923
+
Unr. †Cyamodontida Nopsca 1923
+
G. †Henodus Huene 1936
Invalid names: Psephodermatidae Nopcsa 1923 [empty]
Unr. †Placochelyida Romer 1956
+
G. †Macroplacus Schubert and Klempnauer 1975
G. †Placochelys Jaekel 1902
G. †Protenodontosaurus Pinna 1990
G. †Psephoderma von Meyer 1858
+
Invalid names: Placochelyanus Pinna 1976 [synonym]
Invalid names: Macroplacidae Rieppel 2000 [empty], Protenodontosauridae Rieppel 2000 [empty]
Fm. †Placochelyidae Jaekel 1910
+
G. †Glyphoderma Zhao et al. 2008
G. †Psephochelys Li and Rieppel 2002
G. †Psephosaurus Fraas 1896
G. †Priscochelys Karl 2005
G. †Psephosauriscus Rieppel 2002
+
Psephosauriscus mosis Brotzen 1957
+
Invalid names: Psephosaurus mosis Brotzen 1956 [replaced]
Psephosauriscus rhombifer Rieppel 2002
+
Invalid names: Psephosaurus rhombifer Haas 1959 [replaced]
+
Invalid names: Psephosaurus sinaiticus Haas 1959 [replaced]
Invalid names: Psephosaurus picardi Brotzen 1956 [nomen dubium]
Subor. †Henodontida Kuhn 1961
+
Fm. †Henodontidae von Huene 1936
+
G. †Chelyoposuchus Kuhn 1939
G. †Parahenodus Miguel Chaves et al. 2018
G. †Negevodus Mazin 1986
Fm. †Paraplacodontidae Peyer and Kuhn-Schnyder 1955
+
G. †Paraplacodus Peyer 1931
+
Paraplacodus broilii Peyer 1931
G. †Pararcus Klein and Scheyer 2014
+
Pararcus diepenbroeki Klein and Scheyer 2014
Superfm. †Placodontoidea Nopcsa 1923
+
Fm. †Placodontidae Cope 1871
+
G. †Placodus Agassiz 1833
+
Invalid names: Anomosaurus Huene 1902 [synonym], Crurosaurus Huene 1902 [synonym]
Invalid names: Chelyoposuchinae Kuhn 1946 [empty]
Invalid names: Hemilopadidae Jaekel 1910 [empty], Placodontida Peyer and Kun-Schnyder 1955 [empty], Priscochelys hegnabrunnensis Karl 2005 [nomen dubium]
Unr. †Placodontiformes Neenan et al. 2013
+
G. †Palatodonta Neenan et al. 2013
+
Palatodonta bleekeri Neenan et al. 2013
Or. †Plesiosauria de Blainville 1835 [plesiosaur]
+
G. †Aptychodon Reuss 1855
G. †Bathyspondylus Delair 1982
+
G. †Crymocetus Romer 1966
G. †Embaphias Cope 1894
G. †Eoplesiosaurus Benson et al. 2012
+
Eoplesiosaurus antiquior Benson et al. 2012
G. †Eretmosaurus Seeley 1874
+
Eretmosaurus dubius Tate and Blake 1876
Eretmosaurus rugosus Owen 1840
G. †Hexatarsostinus Hawkins 1840
G. †Lindwurmia Vincent and Storrs 2019
+
Lindwurmia thiuda Vincent and Storrs 2019
G. †Megalneusaurus Knight 1898
+
Megalneusaurus rex Knight 1895
G. †Namuncurania Rusconi 1943
G. †Nothosaurops Leidy 1870
G. †Oligosimus Leidy 1872
G. †Orophosaurus Cope 1851
G. †Piptomerus Cope 1887
G. †Piratosaurus Leidy 1865
Superfm. †Plesiosauroidea Welles 1943
+
Unr. †Cryptoclidia Ketchum and Benson 2010
+
Invalid names: Cryptocleidoidea Williston 1925 [replaced]
Fm. †Cryptoclididae Williston 1925
+
G. †Abyssosaurus Berezin 2011
G. †Colymbosaurus Seeley 1874
G. †Cryptoclidus Seeley 1892
+
Invalid names: Apractocleidus Smellie 1915 [objective synonym]
G. †Djupedalia Knutsen et al. 2012
G. †Kimmerosaurus Brown 1981
G. †Muraenosaurus Seeley 1874
+
Invalid names: Tremamesacleis White 1940 [synonym]
G. †Ophthalmothule Roberts et al. 2020
G. †Pantosaurus Marsh 1893
+
Invalid names: Parasaurus Marsh 1891 [replaced]
G. †Picrocleidus Andrews 1909
G. †Spitrasaurus Knutsen et al. 2012
G. †Tatenectes O'Keefe and Wahl, Jr. 2003
G. †Tricleidus Andrews 1909
G. †Vinialesaurus Gasparini et al. 2002
Invalid names: Cryptoclidus aldingeri von Huene 1932 [nomen dubium]
Fm. †Elasmosauridae Cope 1869 [elasmosaur]
+
G. †Alexeyisaurus Sennikov and Arkhangelsky 2010
Subfm. †Alzadasaurinae
G. †Callawayasaurus Carpenter 1999
G. †Cardiocorax Araújo et al. 2015
G. †Chubutinectes O'Gorman et al. 2023
G. †Cimoliasaurus Leidy 1851
+
Invalid names: Hunosaurus Fritsch 1905 [synonym], Iserosaurus Fritsch 1905 [synonym]
G. †Eromangasaurus Kear 2005
Unr. †Euelasmosaurida O'Gorman 2019
G. †Fluvionectes Campbell et al. 2021
G. †Fresnosaurus Welles 1943
G. †Gronausaurus Hampe 2013
G. †Jucha Fischer et al. 2020
G. †Lagenanectes Sachs et al. 2017
G. †Leivanectes Páramo-Fonseca et al. 2019
G. †Leurospondylus Brown 1913
G. †Scanisaurus Persson 1960
G. †Stereosaurus Seeley 1869
G. †Thalassiosaurus Welles 1943
G. †Thalassonomosaurus Welles 1943
G. †Wapuskanectes Druckenmiller and Russell 2006
Unr. †Weddellonectia O'Gorman and Coria 2017
G. †Zarafasaura Vincent et al. 2011
Invalid names: Alzadasaurus kansasensis Welles 1952 [nomen dubium], Alzadasaurus tropicus Colbert 1949 [nomen vanum], Cimoliasauridae Delair 1959 [synonym], Cimoliasaurus andium Deecke 1895 [nomen dubium], Cimoliasaurus cantabrigiensis Lydekker 1889 [nomen vanum], Cimoliasaurus caudalis Hutton 1894 [nomen vanum], Elasmosaurus amalitskii Pravoslavlev 1916 [nomen vanum], Elasmosaurus kurskensis Bogolubov 1911 [nomen vanum], Elasmosaurus orskensis Bogolubov 1911 [nomen vanum], Elasmosaurus serdobensis Bogolubov 1911 [nomen vanum], Elasmosaurus sternbergi Williston 1906 [nomen dubium], Mauisaurus gardneri Seeley 1878 [nomen vanum], Plesiosaurus constrictus Owen 1850 [nomen vanum], Plesiosaurus crassicostatus Owen 1870 [nomen vanum], Plesiosaurus gulo Cope 1872 [nomen dubium], Plesiosaurus gurgitis Renevier 1858 [nomen vanum], Plesiosaurus helmersenii Kiprijanoff 1882 [nomen vanum], Plesiosaurus holmesii Hector 1874 [nomen vanum], Plesiosaurus hoodii Owen 1870 [nomen vanum], Plesiosaurus mackayii Hector 1874 [nomen vanum], Plesiosaurus mauritanicus Arambourg 1952 [nomen dubium], Plesiosaurus sutherlandi McCoy 1867 [nomen dubium], Pliosaurus gigas Schröder 1885 [nomen vanum], Pliosaurus macrospondylus McCoy 1867 [nomen dubium], Thalassiosaurus ischiadicus Williston 1903 [nomen dubium], Thalassonomosaurus nobilis Williston 1906 [nomen dubium], Woolungasaurus Persson 1960 [nomen dubium], Woolungasaurus glendowerensis Persson 1960 [nomen dubium]
G. †Franconiasaurus Sachs et al. 2024
+
Franconiasaurus brevispinus Sachs et al. 2024
Unr. †Leptocleidia Ketchum and Benson 2010
+
Fm. †Leptocleididae White 1940
Invalid names: Leptocleidoidea Druckenmiller and Russell 2008 [replaced]
Fm. †Microcleididae Benson et al. 2012
+
G. †Microcleidus Watson 1909
+
Invalid names: Occitanosaurus Bardet et al. 1999 [synonym]
G. †Seeleyosaurus White 1940
G. †Opallionectes Kear 2006
+
G. †Plesiopharos Puértolas-Pascual et al. 2021
+
Plesiopharos moelensis Puértolas-Pascual et al. 2021
G. †Plesiopterys O'Keefe 2004
+
Plesiopterys wildi O'Keefe 2004
Fm. †Plesiosauridae Gray 1825
+
G. †Hydrorion Grossmann 2007
G. †Lusonectes Smith et al. 2012
G. †Thaumatosaurus Meyer 1841
Invalid names: Brancasauridae White 1940 [synonym], Muraenosauridae White 1940 [synonym], Plesiosaurus neogaeus Burmeister 1861 [nomen vanum], Tremamesacleididae White 1940 [synonym]
G. †Plesiosaurus de la Beche and Conybeare 1821
+
Plesiosaurus bavaricus Dames 1895
Plesiosaurus bitractensis Sauvage 1883
Plesiosaurus carinatus Cuvier 1824
Plesiosaurus cliduchus Seeley 1865
Plesiosaurus costatus Owen 1840
Plesiosaurus dolichodeirus Conybeare 1824
+
Invalid names: Plesiosaurus homei Gray 1831 [synonym], Plesiosaurus macromus Owen 1840 [synonym]
Plesiosaurus exarsostinus Hawkins 1834
Plesiosaurus grandis Owen 1840
Plesiosaurus hesternus Welles 1953
Plesiosaurus houzeaui Dollo 1909
+
Invalid names: Plesiosaurus brachycephalus Owen 1840 [synonym]
Plesiosaurus macrodeirus Seeley 1869
Plesiosaurus mexicanus Wieland 1910
Plesiosaurus nitidus Phillips 1871
Plesiosaurus trigonus Cuvier 1824
Invalid names: Plesiosaurus elasmosaurus Finzel 1964 [nomen nudum], Plesiosaurus priscus Parkinson 1822 [nomen dubium]
Fm. †Polycotylidae Williston 1908
+
G. †Ceraunosaurus Thurmond 1968
G. †Edgarosaurus Druckenmiller 2002
G. †Manemergus Buchy et al. 2005
G. †Mauriciosaurus Frey et al. 2017
G. †Pahasapasaurus Schumacher 2007
Subfm. †Palmulainae Albright et al. 2007
G. †Plesiopleurodon Carpenter 1996
Subfm. †Polycotylinae Albright et al. 2007
G. †Sulcusuchus Gasparini and Spalletti 1990
G. †Thililua Bardet et al. 2003
Invalid names: Cimoliasaurus leucoscopelus Etheridge, Jr. 1897 [nomen dubium], Dolichorhynchopidae Welles 1962 [synonym], Palmulasaurinae Albright et al. 2007 [empty], Polycotyilnae Albright et al. 2007 [empty], Polycotylus ichthyospondylus tanais Bogolubov 1911 [nomen vanum]
G. †Sthenarosaurus Watson 1909
+
Sthenarosaurus dawkinsi Watson 1909
G. †Westphaliasaurus Schwermann and Sander 2011
+
Westphaliasaurus simonsensii Schwermann and Sander 2011
Invalid names: Cimoliosaurus limnophilus Koken 1887 [nomen dubium], Dolichodeira Seeley 1892 [synonym], Euplesiosauria O'Keefe 2001 [empty]
Superfm. †Pliosauroidea Welles 1943
+
Fm. †Pliosauridae Seeley 1874
+
G. †Acostasaurus Gomez-Perez and Noe 2011
G. †Anguanax Cau and Fanti 2016
G. †Arminisaurus Sachs and Kear 2017
G. †Attenborosaurus Bakker 1993
G. †Cryonectes Vincent et al. 2013
G. †Hauffiosaurus O'Keefe 2001
G. †Marmornectes Ketchum and Benson 2011
G. †Pachycostasaurus Cruickshank et al. 1996
G. †Sinopliosaurus Young 1944
G. †Stenorhynchosaurus Páramo-Fonseca et al. 2016
G. †Strongylokrotaphus Novozhilov 1964
G. †Thalassiodracon Storrs and Taylor 1996
Unr. †Thalassophonea Benson and Druckenmiller 2014
Invalid names: Pliosaurus aequalis Phillips 1871 [nomen dubium], Pliosaurus evansi Seeley 1869 [nomen dubium], Simolestinae Nopcsa 1923 [empty]
Invalid names: Brachydeira Seeley 1892 [synonym], Trinacromeridae Nopcsa 1923 [empty]
G. †Rhaeticosaurus Wintrich et al. 2017
+
Rhaeticosaurus mertensi Wintrich et al. 2017
Fm. †Rhomaleosauridae Nopcsa 1928
+
G. †Anningasaura Vincent and Benson 2012
+
Anningasaura lymense Vincent and Benson 2012
G. †Archaeonectrus Novozhilov 1964
G. †Atychodracon Smith 2015
G. †Avalonnectes Benson et al. 2012
+
Avalonnectes arturi Benson et al. 2012
G. †Bishanopliosaurus Dong 1980
+
Bishanopliosaurus zigongensis Gao et al. 2004
G. †Borealonectes Sato and Wu 2008
+
Borealonectes russelli Sato and Wu 2008
G. †Eurycleidus Andrews 1922
+
Eurycleidus arcuatus Owen 1840
G. †Macroplata Swinton 1930
+
Macroplata tenuiceps Swinton 1930
G. †Maresaurus Gasparini 1997
+
Maresaurus coccai Gasparini 1997
G. †Meyerasaurus Smith and Vincent 2010
+
Meyerasaurus victor Fraas 1910
G. †Rhomaleosaurus Seeley 1874
+
Rhomaleosaurus cramptoni Carte and Baily 1863
Rhomaleosaurus megacephalus Stutchbury 1846
Rhomaleosaurus zetlandicus Phillips 1854
+
Invalid names: Plesiosaurus propinquus Tate and Blake 1876 [synonym], Rhomaleosaurus thorntoni Andrews 1922 [synonym]
G. †Thaumatodracon Smith and Araújo 2017
+
Thaumatodracon wiedenrothi Smith and Araújo 2017
G. †Yuzhoupliosaurus Zhang 1985
+
Invalid names: Thaumatosauridae Romer 1956 [synonym]
G. †Stratesaurus Benson et al. 2012
+
Stratesaurus taylori Benson et al. 2012
G. †Sulmosaurus Huene 1952
G. †Taphrosaurus Cope 1870
G. †Uronautes Cope 1876
G. †Zahrisaurus Malkani 2019
+
Zahrisaurus kilmoolai Malkani 2019
Invalid names: Aptychodon cretaceus Reuss 1855 [nomen vanum], Cimoliasaurus lissaensis Fritsch 1905 [nomen vanum], Cimoliasaurus teplicensis Fritsch 1907 [nomen vanum], Cimoliosaurus nazarowi Bogolubov 1911 [nomen vanum], Cimoliosaurus smithi Owen 1884 [nomen vanum], Discosaurus planior Leidy 1870 [nomen vanum], Discosaurus vetustus Leidy 1851 [nomen vanum], Elasmosaurus intermedius Cope 1894 [nomen vanum], Elasmosaurus orientalis Cope 1869 [nomen vanum], Embaphias circulosus Cope 1894 [nomen vanum], Hunosaurus fasseli Fritsch 1905 [nomen vanum], Iserosaurus littoralis Fritsch 1905 [nomen vanum], Lutkesaurus Kiprijanoff 1883 [nomen nudum], Mauisaurus brachiolatus Hector 1874 [nomen vanum], Neoplesiosauria Ketchum and Benson 2010 [empty], Oligosimus grandaevus Leidy 1872 [nomen vanum], Orophosaurus pauciporus Cope 1887 [nomen vanum], Peloneustes kanzleri Koken 1905 [nomen vanum], Piptomerus hexagonus Cope 1887 [nomen vanum], Piptomerus megaloporus Cope 1887 [nomen vanum], Piptomerus microporus Cope 1887 [nomen vanum], Piratosaurus plicatus Leidy 1865 [nomen dubium], Plesiosauriformes Hay 1930 [empty], Plesiosaurus affinis Owen 1840 [nomen dubium], Plesiosaurus australis Owen 1861 [nomen vanum], Plesiosaurus balticus Schröder 1885 [nomen vanum], Plesiosaurus bernardi Owen 1850 [nomen vanum], Plesiosaurus brachistospondylus Hulke 1870 [nomen dubium], Plesiosaurus brevifemur Cope 1875 [nomen vanum], Plesiosaurus brevis Owen 1854 [nomen dubium], Plesiosaurus continuus Owen 1841 [nomen vanum], Plesiosaurus cycnodeirus Seeley 1869 [nomen nudum], Plesiosaurus degenhardti Koken 1887 [nomen vanum], Plesiosaurus ellipsospondylus Phillips 1871 [nomen dubium], Plesiosaurus euryspondylus Seeley 1869 [nomen nudum], Plesiosaurus gouldii Williston 1897 [nomen vanum], Plesiosaurus hexagonalis Phillips 1871 [nomen dubium], Plesiosaurus infraplanus Phillips 1871 [nomen dubium], Plesiosaurus latispinus Owen 1854 [nomen vanum], Plesiosaurus levis Owen 1854 [nomen dubium], Plesiosaurus lockwoodii Cope 1869 [nomen vanum], Plesiosaurus megapleuron Owen 1854 [nomen dubium], Plesiosaurus microdeirus Seeley 1869 [nomen nudum], Plesiosaurus mudgei Cragin 1894 [nomen vanum], Plesiosaurus neocomiensis Campiche 1860 [nomen vanum], Plesiosaurus nordmanni Eichwald 1869 [nomen vanum], Plesiosaurus ophiodeirus Seeley 1869 [nomen nudum], Plesiosaurus pachyomus Owen 1840 [nomen vanum], Plesiosaurus phillipsi Sauvage 1871 [nomen dubium], Plesiosaurus planispondylus Damon 1860 [nomen nudum], Plesiosaurus planus Owen 1864 [nomen vanum], Plesiosaurus planus trigonalis Owen 1864 [nomen vanum], Plesiosaurus platydeirus Seeley 1869 [nomen nudum], Plesiosaurus poecilospondylus Seeley 1869 [nomen nudum], Plesiosaurus shirleyensis Knight 1900 [nomen dubium], Plesiosaurus subdepressus Owen 1854 [nomen nudum], Plesiosaurus traversii Hector 1874 [nomen vanum], Plesiosaurus truncatus Owen 1854 [nomen dubium], Plesiosaurus validus Phillips 1871 [nomen dubium], Plesiosaurus winspitensis Seeley 1871 [nomen dubium], Pliosaurus planus Hulke 1883 [nomen nudum], Plistosauroidea Edinger 1935 [empty], Polycotylus donicus Pravoslavlev 1915 [nomen vanum], Polycotylus epigurgitis Bogolubov 1911 [nomen vanum], Polycotylus orientalis Bogolubov 1911 [nomen vanum], Polycotylus tenuis Hector 1874 [nomen vanum], Polycotylus ultimus Bogolubov 1911 [nomen vanum], Polyptychodon Owen 1841 [nomen vanum], Polyptychodon neocomiensis Schardt 1910 [nomen vanum], Stereosaurus cratynotus Seeley 1869 [nomen nudum], Stereosaurus platyomus Seeley 1869 [nomen vanum], Stereosaurus stenomus Seeley 1869 [nomen nudum], Teleosaurus neogaeus Burmeister and Giebel 1861 [nomen dubium], Uronautes cetiformis Cope 1876 [nomen vanum], Xenopsaria Benson and Druckenmiller 2014 [empty]
Invalid names: Cercidopleura Seeley 1892 [empty], Dicranopleura Seeley 1892 [empty], Eusauropterygia Tschanz 1989 [empty], Microleptosaurus Skuphos 1893 [nomen dubium], Nothosauriformes Storrs 1991 [empty], Simosauria Gervais 1845 [empty]
Fm. †Saurosphargidae Li et al. 2011
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G. †Hemilopas Meyer 1834
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Hemilopas mentzeli Meyer 1847
G. †Largocephalosaurus Cheng et al. 2012
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Largocephalosaurus polycarpon Cheng et al. 2012
Largocephalosaurus qianensis Li et al. 2013
G. †Prosaurosphargis Wolniewicz et al. 2023
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Prosaurosphargis yingzishanensis Wolniewicz et al. 2023
G. †Sinosaurosphargis Li et al. 2011
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Invalid names: Saurosphargis Frech 1903 [nomen dubium]
G. †Stauromatodon Sobral et al. 2021
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Stauromatodon mohli Sobral et al. 2021
Unr. †Thalattosauriformes Nicholls 1999
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Or. †Thalattosauria Merriam 1905
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Superfm. †Askeptosauroidea Wu et al. 2009
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G. †Anshunsaurus Liu 1999
G. †Askeptosaurus Nopcsa 1925
G. †Miodentosaurus Cheng et al. 2007
G. †Endennasaurus Renesto 1984
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Superfm. †Thalattosauroidea Nopcsa 1928
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G. †Agkistrognathus Nicholls and Brinkman 1993
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Agkistrognathus campbelli Nicholls and Brinkman 1993
G. †Clarazia Peyer 1936
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Clarazia schinzi Peyer 1936
G. †Gunakadeit Druckenmiller et al. 2020
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Gunakadeit joseeae Druckenmiller et al. 2020
G. †Hescheleria Peyer 1936
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Hescheleria rubeli Peyer 1936
G. †Nectosaurus Merriam 1905
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Nectosaurus halius Merriam 1905
G. †Paralonectes Nicholls and Brinkman 1993
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Paralonectes merriami Nicholls and Brinkman 1993
Fm. †Thalattosauridae Merriam 1904
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G. †Concavispina Zhao et al. 2013
Invalid names: Thalattosaurida Nicholls 1999 [empty]
G. †Thalattosaurus Merriam 1904
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Thalattosaurus alexandrae Merriam 1904
Thalattosaurus borealis Nicholls and Brinkman 1993
Invalid names: Thalattosaurus perrini Merriam 1905 [nomen dubium], Thalattosaurus shastensis Merriam 1905 [nomen dubium]
G. †Xinpusaurus Yin 2000
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Xinpusaurus kohi Jiang et al. 2004
Xinpusaurus suni Yin 2000
Xinpusaurus xingyiensis Li et al. 2016
Invalid names: Diaptosauria Osborn 1903 [empty], Endennasauridae [empty], Fremouwsauridae Gow 1992 [empty], Prodiapsida [empty], Rysosteus Owen 1842 [nomen dubium], Utahdactylus Czerkas and Mickelson 2002 [nomen dubium], Utahdactylus kateae Czerkas and Mickelson 2002 [nomen dubium]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Maximum body mass: 100000 kgg
Minimum body mass: 300 gg
Environment: terrestrialsubc
Locomotion: actively mobilec
Created: 2017-04-17 15:16:03
Modified: 2017-04-17 15:16:03
Source: g = genus, subc = subclass, c = class, subp = subphylum
References: Peczkis 1995, Hendy et al. 2009, Carroll 1988

Age range

Maximum range based only on fossils: base of the Missourian to the top of the Holocene or 306.00000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 303.7 Ma

Collections (18906 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Kasimovian - Kungurian307.0 - 272.3USA (Utah) Halgaitosaurus gregarius (218159)
Missourian306.0 - 303.7USA (Kansas) Petrolacosaurus kansensis, Podargosaurus hibbardi (80784)
Virgilian303.7 - 298.9USA (Kansas) Spinoaequalis schultzei (68427)
Asselian298.9 - 295.5France (Languedoc-Roussillon) Aphelosaurus lutevensis (171350)
Wolfcampian298.9 - 286.0USA (New Mexico) Zarcasaurus tanyderus (171346)
Sakmarian293.52 - 290.1Germany (Saxony) Kadaliosaurus priscus (52522)
Artinskian290.1 - 279.3USA (Texas) Bolosaurus striatus (13044)
Artinskian290.1 - 279.3USA (Oklahoma) Orovenator mayorum, Diapsida indet. (67862)
Artinskian - Kungurian290.1 - 272.3USA (Texas) Araeoscelis casei (28250)
Artinskian - Capitanian290.1 - 259.51Poland (Lower Silesia) Saurichnites divaricatus, Saurichnites gracilis (223853) Saurichnites leisnerianus (187930)
Leonardian286.0 - 273.01USA (Oklahoma) Dictybolos tener (79408 84941)
Kungurian279.3 - 272.3USA (Texas) Araeoscelis gracilis (28267)
Late/Upper Kazanian - Urzhumian272.5 - 264.28Russian Federation (Arkhangelsk) Lanthanolania ivakhnenkoi (187648)
Roadian - Capitanian272.3 - 259.51Brazil (Rio Grande do Sul) Archosauromorpha indet. (106558)
Wordian266.9 - 264.28Russian Federation Diapsida indet. (197595)
Late/Upper Severodvinian264.28 - 259.51Russian Federation (Tatarstan) Eorasaurus olsoni (80712)
Severodvinian - Vyatkian264.28 - 257.4Russian Federation (Orenburg) Diapsida sp., Rautiania minichi, Rautiania alexandri (85483)
Wuchiapingian259.9 - 254.17Germany (Hesse) Protorosaurus sp. (84836) Protorosaurus speneri (81115 93036)
Wuchiapingian259.9 - 254.17South Africa (Northern Cape) Galesphyrus capensis (115685)
Wuchiapingian259.9 - 254.17Germany (Thuringia) Protorosaurus speneri (93033 93034)