PBDB Taxon

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Stereospondyli

Amphibia - Temnospondyli

Taxonomy

Stereospondyli was named by von Zittel (1887). It was considered monophyletic by Yates and Warren (2000).

It was reranked as the order Stereospondyli by Gadow (1898); it was reranked as the unranked clade Stereospondyli by Watson (1919), Huene (1954), Yates and Warren (2000), Damiani and Rubidge (2003), Pineiro et al. (2012), Schoch (2013), Fortuny et al. (2017) and Eltink et al. (2017); it was corrected as Stereospondylida by Kuhn (1971).

It was assigned to Stegocephali by von Zittel (1887); to Stegocephali by Gadow (1898); to Stegocephala by Moodie (1909); to Labyrinthodontia by Watson (1919); to Stegocephalia by Huene (1954); to Stereospondylomorpha by Yates and Warren (2000) and Schoch (2013); to Temnospondyli by Damiani and Rubidge (2003), Pineiro et al. (2012), Fortuny et al. (2017) and Eltink et al. (2017); and to Temnospondyli by Kuhn (1946), Kuhn (1971), Schoch and Milner (2000) and Buffa et al. (2019).

Synonyms

Mastodonsaurus andriani was named by Münster (1839). It is a 3D body fossil. Its type locality is Würzburg, which is in a Carnian terrestrial horizon in the Stuttgart Formation of Germany.

It was considered a nomen dubium by Schoch (1999) and Schoch and Milner (2000).
Mastodonsaurus meyeri was named by Münster (1834). It is a 3D body fossil. Its type locality is Rothenburg ob der Tauber, which is in a Ladinian marine horizon in Germany.

It was considered a nomen vanum by Welles and Cosgriff (1965); it was considered a nomen dubium by Schoch (1999) and Schoch and Milner (2000).
Mastodonsaurus fuerstenberganus was named by Meyer (1847).

It was considered a nomen dubium by Schoch (1999).
Cryobatrachus kitchingi was named by Colbert and Cosgriff (1974). Its type specimen is AMNH 9503, a partial skull (Skull lacking palate and braincase), and it is a 3D body fossil. Its type locality is Kitching Ridge (Fremouw Fm.), which is in a Triassic fluvial sandstone/mudstone in the Fremouw Formation of Antarctica.

It was considered a nomen dubium by Schoch and Milner (2000).
Diadetognathus was named by Miall (1874). Its type is Diadetognathus varvicensis.

It was considered a nomen vanum by Welles and Cosgriff (1965); it was considered a nomen dubium by Schoch and Milner (2000).
Diadetognathus varvicensis was named by Miall (1874). It is the type species of Diadetognathus.

It was considered a nomen vanum by Welles and Cosgriff (1965); it was considered a nomen dubium by Schoch and Milner (2000).
Mastodonsaurus indicus was named by Lydekker (1890). Its type specimen is IM.H20/6, a set of postcrania, and it is a 3D body fossil. Its type locality is Denwa River, Satpura district, which is in an Anisian terrestrial horizon in the Denwa Formation of India.

It was considered a nomen dubium by Schoch and Milner (2000).
Boreosaurus thorslundi was named by Nilsson (1943). Its type specimen is PIU U.45, a mandible, and it is a cast. Its type locality is Mt. Milne Edwards, which is in a Smithian marine shale in the Kongressfjellet Formation of Svalbard and Jan Mayen.

It was considered a nomen dubium by Schoch and Milner (2000) and Warren and Marsicano (2000).
Laccocephalus insperatus was named by Watson (1919). Its type specimen is BMNH R 532, a partial skull, and it is a 3D body fossil. It is the type species of Laccocephalus.

It was synonymized subjectively with Uranocentrodon senekalensis by Schoch and Milner (2000); it was considered a nomen dubium by Damiani and Rubidge (2003).
Labyrinthodon panchetensis was named by Tripathi (1969). Its type specimen is GSI 17886, a mandible, and it is a 3D body fossil. Its type locality is Deoli, which is in an Induan/Smithian fluvial sandstone in the Panchet Formation of India.

It was considered a nomen dubium by Schoch and Milner (2000); it was recombined as Capulomala panchetensis by Warren et al. (2009) and Poropat et al. (2023).
Laccocephalus was named by Watson (1919). Its type is Laccocephalus insperatus.

It was synonymized subjectively with Uranocentrodon by Schoch and Milner (2000); it was considered a nomen dubium by Damiani and Rubidge (2003).

It was assigned to Rhinesuchidae by Watson (1919), Haughton (1925) and Carroll (1988).
Cryobatrachus was named by Colbert and Cosgriff (1974).

It was considered a nomen dubium by Schoch and Milner (2000).

It was assigned to Lydekkerinidae by Colbert and Cosgriff (1974), Carroll (1988) and Shishkin et al. (1996).
Pachygonia was named by Huxley (1865). Its type is Pachygonia incurvata.

It was considered a nomen vanum by Welles and Cosgriff (1965); it was considered a nomen dubium by Schoch and Milner (2000).

It was assigned to Capitosauridae by Tripathi (1969); and to Benthosuchidae by Carroll (1988).
Boreosaurus was named by Nilsson (1943). It is not extant.

It was considered a nomen dubium by Schoch and Milner (2000) and Warren and Marsicano (2000).

It was assigned to Brachyopidae by Carroll (1988).
Pachygonia incurvata was named by Huxley (1865). Its type specimen is GSI 2257, a mandible, and it is a 3D body fossil. Its type locality is Deoli, which is in an Induan/Smithian fluvial sandstone in the Panchet Formation of India. It is the type species of Pachygonia.

It was considered a nomen vanum by Welles and Cosgriff (1965); it was considered a nomen dubium by Schoch and Milner (2000).

Synonymy list

Year	Name and author
1834	Mastodonsaurus meyeri Münster p. 527
1839	Mastodonsaurus andriani Münster
1847	Mastodonsaurus fuerstenberganus Meyer
1865	Pachygonia Huxley p. 8
1865	Pachygonia incurvata Huxley p. 8
1874	Diadetognathus Miall p. 425
1874	Diadetognathus varvicensis Miall p. 425
1887	Stereospondyli von Zittel pp. 369, 370, 397
1890	Mastodonsaurus indicus Lydekker
1898	Stereospondyli Gadow p. 13
1909	Stereospondyli Moodie p. 39
1919	Laccocephalus Watson p. 18 fig. 10
1919	Laccocephalus insperatus Watson p. 18 fig. 10
1919	Laccocephalus Watson p. 65
1919	Stereospondyli Watson p. 67
1925	Laccocephalus Haughton p. 231
1925	Laccocephalus insperatus Haughton p. 233
1943	Boreosaurus Nilsson p. 34 figs. 21-25, pl. 9
1943	Boreosaurus thorslundi Nilsson p. 34 figs. 21-25, pl. 9
1946	Stereospondyli Kuhn p. 52
1954	Stereospondyli Huene p. 11
1969	Pachygonia Tripathi p. 27
1969	Labyrinthodon panchetensis Tripathi p. 32
1971	Stereospondylida Kuhn p. 6
1971	Mastodonsaurus andriani Kuhn p. 7
1971	Mastodonsaurus meyeri Kuhn p. 7
1974	Cryobatrachus Colbert and Cosgriff
1974	Cryobatrachus kitchingi Colbert and Cosgriff p. 5
1974	Cryobatrachus Colbert and Cosgriff p. 19 figs. 14-19
1988	Boreosaurus Carroll
1988	Cryobatrachus Carroll
1988	Laccocephalus Carroll
1988	Pachygonia Carroll
1996	Cryobatrachus Shishkin et al. p. 1651
2000	Stereospondyli Schoch and Milner
2000	Stereospondyli Yates and Warren pp. 84, 94 fig. 1
2003	Stereospondyli Damiani and Rubidge p. 23
2009	Capulomala panchetensis Warren et al. p. 164
2012	Stereospondyli Pineiro et al. p. 67
2013	Stereospondyli Schoch
2017	Stereospondyli Eltink et al.
2017	Stereospondyli Fortuny et al.
2019	Stereospondyli Buffa et al.
2023	Capulomala panchetensis Poropat et al. p. 135

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)

Rank	Name	Author
subclass	Tetrapodomorpha	()
—	Tetrapoda
class	Amphibia
order	Temnospondyli	()
—	Eutemnospondyli
—	Rhachitomi	()
—	Eryopiformes
—	Stereospondylomorpha
—	Stereospondyli	()
—	Stereospondyli	()

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. †Stereospondyli von Zittel 1887

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G. †Arachana Pineiro et al. 2012

†Arachana nigra Pineiro et al. 2012

Superfm. †Brachyopoidea Lydekker 1885

Fm. †Brachyopidae Broom 1915

G. †Banksiops Warren and Marsicano 2000

†Banksiops townrowi Cosgriff 1974

Invalid names: Banksia Warren and Marsicano 1998 [replaced]

G. †Bathignathus Damiani and Jeannot 2002

†Bathignathus poikilops Damiani and Jeannot 2002

†Bathignathus watsoni Haughton 1925

G. †Batrachosuchus Broom 1903

†Batrachosuchus browni Broom 1903

†Batrachosuchus concordi Chernin 1977

†Batrachosuchus henwoodi Cosgriff 1969

G. †Blinasaurus Cosgriff 1969

G. †Bothriceps Huxley 1859

†Bothriceps australis Huxley 1859

G. †Brachyops Owen 1855

†Brachyops laticeps Owen 1855

G. †Ferganobatrachus Nessov 1991

†Ferganobatrachus riabinini Nessov 1990

G. †Gobiops Shishkin 1991

†Gobiops desertus Shishkin 1991

G. †Notobrachyops Cosgriff 1973

†Notobrachyops picketti Cosgriff 1973

G. †Platycepsion Kuhn 1964

†Platycepsion wilkinsoni Stephens 1887

Invalid names: Platyceps Stephens 1887 [replaced]

G. †Sinobrachyops Dong 1985

†Sinobrachyops placenticephalus Dong 1985

G. †Vanastega Damiani and Kitching 2003

†Vanastega plurimidens Damiani and Kitching 2003

G. †Vigilius Warren and Marsicano 2000

†Vigilius wellesi Warren and Marsicano 2000

G. †Xenobrachyops Warren and Hutchinson 1983

†Xenobrachyops allos Howie 1972

Fm. †Chigutisauridae Rusconi 1951

G. †Arenaerpeton Hart et al. 2023

†Arenaerpeton supinatus Hart et al. 2023

G. †Compsocerops Sengupta 1995

†Compsocerops cosgriffi Sengupta 1995

G. †Keratobrachyops Warren 1981

†Keratobrachyops australis Warren 1981

G. †Koolasuchus Warren et al. 1997

†Koolasuchus cleelandi Warren et al. 1997

G. †Kuttycephalus Sengupta 1995

†Kuttycephalus triangularis Sengupta 1995

G. †Pelorocephalus Cabrera 1944

†Pelorocephalus cacheutensis Rusconi 1953

†Pelorocephalus mendozensis Cabrera 1944

Invalid names: Chigutisaurus tunuyanensis Rusconi 1948 [synonym]

†Pelorocephalus tenax Rusconi 1949

Invalid names: Chigutisaurus Rusconi 1948 [synonym], Pelorocephalus ischigualastensis Bonaparte 1975 [nomen nudum]

G. †Siderops Warren and Hutchinson 1983

†Siderops kehli Warren and Hutchinson 1983

Invalid names: Icanosaurus Rusconi 1950 [nomen dubium], Icanosaurus rectifrons Rusconi 1950 [nomen dubium]

G. †Hadrokkosaurus Welles 1958

†Hadrokkosaurus bradyi Welles 1947

Fm. †Plagiosauridae Abel 1919

G. †Plagiobatrachus Warren 1985

†Plagiobatrachus australis Warren 1985

Subfm. †Plagiosaurinae Abel 1919

G. †Gerrothorax Nilsson 1934

†Gerrothorax pulcherrimus Fraas 1913

Invalid names: Gerrothorax franconicus Kuhn 1932 [synonym], Gerrothorax rhaeticus Nilsson 1934 [synonym], Plagiosaurus striopustulatus Huene 1922 [synonym], Plagiosuchus pustuloglomeratus Huene 1922 [synonym]

G. †Plagiosaurus Jaekel 1914

†Plagiosaurus depressus Jaekel 1914

Subfm. †Plagiosterninae Shishkin 1986

G. †Aranetsia Novikov and Shishkin 1992

†Aranetsia improvisa Novikov and Shishkin 1992

G. †Megalophthalma Schoch et al. 2014

†Megalophthalma ockerti Schoch et al. 2014

G. †Melanopelta Shishkin 1967

†Melanopelta antiqua Shishkin 1967

G. †Plagiorophus Konjukova 1955

†Plagiorophus danilovi Shishkin 1986

†Plagiorophus paraboliceps Konzhukova 1955

G. †Plagiosternum Fraas 1896

†Plagiosternum granulosum Fraas 1889

Invalid names: Plagiosternum nanum Schmidt 1931 [synonym]

Unr. †Plagiosuchinae Schoch and Milner 2014

G. †Plagioscutum Shishkin 1986

†Plagioscutum caspiense Shishkin 1986

†Plagioscutum ochevi Shishkin 1986

G. †Plagiosuchus Huene 1922

†Plagiosuchus pustuliferus Fraas 1896

G. †Taphrognathus Welles 1947

Invalid names: Austropelor Longman 1941 [nomen dubium], Austropelor wadleyi Longman 1941 [nomen dubium]

G. †Capulomala Warren et al. 2009

†Capulomala arcadiaensis Warren et al. 2009

†Capulomala panchetensis Tripathi 1969

G. †Chinlestegophis Pardo et al. 2017

†Chinlestegophis jenkinsi Pardo et al. 2017

G. †Kryostega Sidor et al. 2008

†Kryostega collinsoni Sidor et al. 2008

G. †Ninumbeehan So et al. 2024

†Ninumbeehan dookoodukah So et al. 2024

G. †Peltobatrachus Panchen 1959

†Peltobatrachus pustulatus Panchen 1959

Fm. †Rhinesuchidae Watson 1919

Unr. †Australerpetinae Eltink et al. 2016

G. †Australerpeton Barbarena 1998

†Australerpeton cosgriffi Barberena 1998

G. †Broomistega Shishkin and Rubidge 2000

†Broomistega putterilli Broom 1930

G. †Laccosaurus Haughton 1925

†Laccosaurus watsoni Haughton 1925

Invalid names: Muchocephalus Watson 1962 [synonym]

G. †Parapytanga Strapasson et al. 2015

†Parapytanga catarinensis Strapasson et al. 2015

G. †Rastosuchus Dias et al. 2020

†Rastosuchus hammeri Dias et al. 2020

G. †Rhineceps Watson 1962

†Rhineceps nyasaensis Haughton 1926

G. †Rhinesuchoides Olson and Broom 1937

†Rhinesuchoides capensis Haughton 1925

Invalid names: Rhinesuchus avenanti Boonstra 1940 [synonym]

†Rhinesuchoides tenuiceps Olson and Broom 1937

Invalid names: Rhinesuchus rubidgei Broom 1948 [synonym]

G. †Rhinesuchus Broom 1908

†Rhinesuchus senekalensis van Hoepen 1911

†Rhinesuchus whaitsi Broom 1908

Invalid names: Muchocephalus muchos Watson 1962 [synonym], Rhinesuchus beaufortensis Boonstra 1940 [synonym], Rhinesuchus broomianus Huene 1931 [synonym]

Invalid names: Rhinesuchus wadiai Tripathi 1961 [nomen dubium], Rhinesuchus wolgodvinensis Yakovlev 1923 [nomen dubium]

G. †Uranocentrodon van Hoepen 1915

†Uranocentrodon senekalensis van Hoepen 1911

Invalid names: Rhinesuchus major Broom 1911 [synonym]

Invalid names: Myriodon van Hoepen 1911 [synonym]

Invalid names: Eryops africanus Lydekker 1890 [nomen dubium], Eryops oweni Lydekker 1890 [nomen dubium], Gondwanosaurus Lydekker 1885 [nomen dubium], Gondwanosaurus bijoriensis Lydekker 1885 [nomen dubium], Phrynosuchidae Romer 1945 [synonym], Rhinecepidae Ochev 1966 [synonym], Uranocentrodon madagascarensis Ochev 1966 [nomen dubium], Uranocentrodontidae Romer 1947 [synonym]

Infraor. †Rhytidostea Schoch and Milner 2000

G. †Indobrachyops Huene and Sahni 1958

†Indobrachyops panchetensis Huene and Sahni 1958

Superfm. †Rhytidosteoidea Cosgriff 1965

Fm. †Derwentiidae Schoch and Milner 2000

G. †Acerastea Warren and Hutchinson 1987

†Acerastea wadeae Warren and Hutchinson 1987

G. †Derwentia Cosgriff 1974

†Derwentia warreni Cosgriff 1974

G. †Rewana Howie 1972

†Rewana myriadens Warren and Black 1985

†Rewana quadricuneata Howie 1972

Fm. †Rhytidosteidae Huene 1920

G. †Arcadia Warren and Black 1985

G. †Cabralia Dias-da-Silva et al. 2006

G. †Nanolania Yates 2000

†Nanolania anatopretia Yates 2000

Subfm. †Peltosteginae Save-Soderbergh 1935

G. †Boreopelta Shishkin 1985

G. †Deltasaurus Cosgriff 1965

G. †Mahavisaurus Lehman 1966

Invalid names: Lyrosaurus Lehman 1966 [synonym]

G. †Trucheosaurus Watson 1956

Subfm. †Rhytidosteinae Huene 1920

G. †Pneumatostega Cosgriff and Zawiskie 1979

G. †Rhytidosteus Owen 1884

G. †Sangaia Dias-da-Silva and Marsicano 2006

†Sangaia lavinai Dias-da-Silva et al. 2006

Invalid names: Indobrachyopidae Cosgriff and Zawiskie 1979 [empty]

Unr. †Superstes Eltink et al. 2019

Unr. †Capitosauria Yates and Warren 2000

G. †Benthosuchus Efremov 1936

†Benthosuchus bystrowi Getmanov 1989

†Benthosuchus gusevae Novikov 2012

†Benthosuchus korobkovi Ivakhnenko 1972

†Benthosuchus lukyanovi Morkovin 2020

†Benthosuchus sushkini Efremov 1929

†Benthosuchus uralensis Ochev 1958

Invalid names: Benthosuchus bashkiricus Otschev 1972 [nomen dubium], Parabenthosuchus Ochev 1958 [synonym], Rasaurus Kuzmin 1938 [synonym]

G. †Calmasuchus Fortuny et al. 2011

†Calmasuchus acri Fortuny et al. 2011

Unr. †Capitosauroidea Watson 1919

G. †Antarctosuchus Sidor et al. 2014

†Antarctosuchus polyodon Sidor et al. 2014

Fm. †Benthosuchidae Efremov 1940

G. †Angusaurus Getmanov 1989

Subfm. †Qantasinae Novikov 2012

Subfm. †Syrtosuchinae Novikov 2016

G. †Volgosuchus Efremov 1940

G. †Vyborosaurus Novikov 1990

Invalid names: Benthosuchinae Efremov 1937 [empty], Eocyclotosaurinae Morales and Kamphausen 1984 [empty]

G. †Capitosauroides Haubold 1971

†Capitosauroides bernburgensis Haubold 1971

†Capitosauroides fuglewiczi Ptaszynski 2000

Fm. †Cyclotosauridae Shishkin 1964

G. †Cyclotosaurus Fraas 1889

G. †Quasicyclotosaurus Schoch 2000

Invalid names: Cyclotosaurinae Shishkin 1964 [empty], Heylerosaurinae Ortlam 1970 [empty], Stenotosaurinae Kamphausen 1989 [empty]

G. †Eocyclotosaurus Ortlam 1970

†Eocyclotosaurus appetolatus Rinehart et al. 2015

†Eocyclotosaurus lehmani Heyler 1969

†Eocyclotosaurus randalli Welles 1947

†Eocyclotosaurus wellesi Schoch 2000

†Eocyclotosaurus woschmidti Ortlam 1970

Invalid names: Moenkopisaurus Shishkin 1960 [synonym]

G. †Eryosuchus Ochev 1966

†Eryosuchus rajareddyi Chowdhury 1970

†Eryosuchus tverdochlebovi Ochev 1966

Invalid names: Eryosuchus antiquus Ochev 1966 [synonym], Eryosuchus garjainovi Ochev 1966 [synonym]

Fm. †Mastodonsauridae Lydekker 1885

G. †Bulgosuchus Damiani 1999

G. †Cherninia Damiani 2001

G. †Heptasaurus Säve-Söderbergh 1935

G. †Jammerbergia Damiani and Hancox 2003

G. †Komatosuchus Novikov and Shishkin 1992

G. †Stenotosaurus Romer 1947

G. †Subcyclotosaurus Watson 1958

G. †Tatrasuchus Maryanska and Shishkin 1996

Invalid names: Kupferzellia Schoch 1997 [synonym]

G. †Wellesaurus Lehman 1971

Invalid names: Capitosauridae Watson 1919 [objective synonym], Capitosaurus arenaceus Münster 1836 [nomen dubium], Capitosaurus bogdoanus Woodward 1932 [nomen dubium], Capitosaurus polaris Wiman 1914 [nomen dubium], Cyclotosaurus spitzbergensis Wiman 1914 [nomen dubium], Labyrinthodon lavisi Seeley 1876 [nomen dubium], Mastodonsaurus vaslenensis Meyer 1855 [nomen dubium], Parotosuchus dirus Chernin 1978 [nomen dubium]

G. †Mastodonsaurus Jaeger 1828

†Mastodonsaurus cappelensis Wepfer 1923

Invalid names: Cyclotosaurus mechernichensis Jux and Pflug 1958 [synonym], Mastodonsaurus ingens Trusheim 1937 [synonym]

†Mastodonsaurus giganteus Jaeger 1828

Invalid names: Mastodonsaurus acuminatus Fraas 1889 [synonym], Mastodonsaurus jaegeri Holl 1829 [synonym], Salamandroides jaegeri Alberti 1834 [objective synonym]

†Mastodonsaurus torvus Konzhukova 1955

Invalid names: Batrachosaurus Fitzinger 1840 [objective synonym], Labyrinthodon Owen 1842 [objective synonym], Salamandroides Jaeger 1828 [nomen oblitum], Xestorrhytias Meyer 1842 [synonym]

G. †Meyerosuchus Ochev 1966

†Meyerosuchus fuerstenbergianus Meyer 1855

G. †Odenwaldia Morales and Kamphausen 1984

†Odenwaldia heidelbergensis Morales and Kamphausen 1984

Invalid names: Parotosaurus lapparenti Lehman 1971 [nomen dubium]

Fm. †Paracyclotosauridae Ochev 1966

G. †Stanocephalosaurus Brown 1933

G. †Paracyclotosaurus Watson 1958

†Paracyclotosaurus crookshanki Mukherjee and Sengupta 1998

†Paracyclotosaurus davidi Watson 1958

†Paracyclotosaurus morganorum Damiani and Hancox 2003

G. †Parotosuchus Ochev and Shishkin 1968

†Parotosuchus helgolandicus Schroeder 1913

†Parotosuchus komiensis Novikov 1986

†Parotosuchus nasutus Meyer 1858

Invalid names: Capitosaurus fronto Meyer 1858 [synonym], Mastodonsaurus weigelti Wagner 1935 [synonym]

†Parotosuchus orenburgensis Konzhukova 1968

†Parotosuchus orientalis Ochev 1966

†Parotosuchus ptaszynskii Sulej and Niedźwiedzki 2011

†Parotosuchus sequester Lozovsky and Shishkin 1974

†Parotosuchus speleus Shishkin and Sulej 2009

Invalid names: Parotosaurus Jaekel 1914 [synonym], Parotosaurus panteleevi Ochev 1966 [nomen dubium]

G. †Rewanobatrachus Schoch and Milner 2000

Invalid names: Bogdania fragmenta Yang 1978 [nomen dubium], Cyclotosaurus albertyni Broom 1904 [nomen dubium], Deltacephalidae Maryanska and Shishkin 1996 [empty], Eryosuchidae Schoch and Milner 2000 [empty], Mastodonsauroidea Lydekker 1885 [synonym], Mastodonsaurus silesiacus Kunisch 1885 [nomen dubium], Parotosaurus turfanensis Young 1966 [nomen dubium], Parotosuchidae Schoch and Werneburg 1998 [empty], Yarengiidae Shishkin 1960 [empty]

G. †Edingerella Schoch and Milner 2000

†Edingerella madagascariensis Lehman 1961

Invalid names: Wetlugasaurus lehmani Ochev 1966 [synonym], Wetlugasaurus milloti Lehman 1961 [synonym]

Fm. †Sclerothoracidae Huene 1932

G. †Sclerothorax Huene 1932

†Sclerothorax hypselonotus Huene 1932

G. †Tomeia Eltink et al. 2017

†Tomeia witecki Eltink et al. 2017

G. †Vladlenosaurus Morkovin and Novikov 2000

†Vladlenosaurus alexeyevi Morkovin and Novikov 2000

G. †Warrenisuchus Maganuco et al. 2009

†Warrenisuchus aliciae Warren and Hutchinson 1988

G. †Watsonisuchus Ochev 1966

†Watsonisuchus gunganj Warren 1980

†Watsonisuchus magnus Watson 1962

†Watsonisuchus rewanensis Warren 1980

Invalid names: Parotosaurus wadei Cosgriff 1972 [nomen dubium]

G. †Wetlugasaurus Riabinin 1930

†Wetlugasaurus angustifrons Riabinin 1930

Invalid names: Wetlugasaurus volgensis Hartmann-Weinberg and Kuzmin 1936 [synonym]

†Wetlugasaurus kzilsajensis Ochev 1972

†Wetlugasaurus malachovi Novikov 1990

†Wetlugasaurus vjatkensis Gubin 1987

Invalid names: Volgasaurus Kuzmin 1937 [synonym], Volgasuchus Efremov 1940 [synonym]

Fm. †Lapillopsidae

G. †Lapillopsis Warren and Hutchinson 1990

†Lapillopsis nana Warren and Hutchinson 1990

G. †Manubrantlia Yates and Sengupta 2002

†Manubrantlia khaki Yates and Sengupta 2002

G. †Rhigerpeton Gee et al. 2023

†Rhigerpeton isbelli Gee et al. 2023

G. †Rotaurisaurus Yates 1999

†Rotaurisaurus contundo Yates 1999

Fm. †Lydekkerinidae Watson 1919

G. †Chomatobatrachus Cosgriff 1974

†Chomatobatrachus halei Cosgriff 1974

G. †Deltacephalus Swinton 1956

†Deltacephalus whitei Swinton 1956

G. †Eolydekkerina Shishkin et al. 1996

†Eolydekkerina magna Shishkin et al. 1996

G. †Luzocephalus Shishkin 1980

†Luzocephalus blomi Shishkin 1980

†Luzocephalus johanssoni Säve-Söderbergh 1935

Invalid names: Lyrocephalus rapax Säve-Söderbergh 1935 [synonym]

†Luzocephalus kochi Säve-Söderbergh 1935

G. †Lydekkerina Broom 1915

†Lydekkerina huxleyi Lydekker 1889

Invalid names: Limnoiketes paludinatans Parrington 1948 [synonym], Lydekkerina dutoiti Broom 1930 [synonym], Putterillia platyceps Broom 1930 [synonym]

Invalid names: Broomulus Romer 1947 [synonym], Limnoiketes Parrington 1948 [synonym], Lydekkerina kitchingi Broom 1950 [nomen dubium], Putterillia Broom 1915 [synonym]

Invalid names: Indobenthosuchus Tripathi 1969 [nomen dubium], Indobenthosuchus panchetensis Tripathi 1969 [nomen dubium], Lydekkerina panchetensis Tripathi 1969 [nomen dubium]

Unr. †Trematosauria Yates and Warren 2000

G. †Laidleria Kitching 1957

†Laidleria gracilis Kitching 1957

Superfm. †Trematosauroidea Watson 1919

Fm. †Almasauridae Dutuit 1972

G. †Almasaurus Dutuit 1972

Invalid names: Latiscopus Wilson 1948 [nomen dubium], Latiscopus disjunctus Wilson 1948 [nomen dubium]

G. †Calamops Sinclair 1917

Invalid names: Calamops paludosus Sinclair 1917 [nomen dubium]

G. †Callistomordax Schoch 2008

†Callistomordax kugleri Schoch 2008

Fm. †Lyrocephaliscidae Kuhn 1961

G. †Lyrocephaliscus Kuhn 1961

Fm. †Metoposauridae Watson 1919

G. †Anaschisma Branson 1905

Invalid names: Borborophagus Branson and Mehl 1929 [synonym], Buettneria Case 1922 [synonym], Koskinonodon Branson and Mehl 1929 [synonym]

G. †Apachesaurus Hunt 1993

G. †Arganasaurus Hunt 1993

G. †Bogdania Yang 1978

G. †Dutuitosaurus Hunt 1993

G. †Metoposaurus Lydekker 1890

Invalid names: Metopias Meyer 1842 [replaced]

G. †Negevodus Mazin 1986

G. †Panthasaurus Chakravorti and Sengupta 2018

G. †Trigonosternum Schmidt 1931

Invalid names: Dictyocephalus Leidy 1856 [nomen dubium], Eupelor Cope 1869 [nomen dubium], Mastodonsaurus durus Cope 1866 [nomen dubium], Metoposaurus fraasi Lucas 1904 [nomen dubium], Metoposaurus hoffmani Dutuit 1978 [nomen dubium], Metoposaurus jonesi Case 1920 [nomen dubium]

G. †Peltostega Wiman 1916

†Peltostega erici Wiman 1916

Invalid names: Peltostega wimani Nilsson 1946 [synonym]

Fm. †Platystegidae Schoch and Milner 2000

G. †Inflectosaurus Shishkin 1960

G. †Platystega Wiman 1914

G. †Thoosuchus Efremov 1940

†Thoosuchus abbasovi Novikov 2021

†Thoosuchus acutirostris Hartmann-Weinberg and Kuzmin 1936

†Thoosuchus tardus Getmanov 1989

†Thoosuchus tuberculatus Getmanov 1989

†Thoosuchus yakovlevi Riabinin 1927

Fm. †Trematosauridae Watson 1919

G. †Benthosphenus Shishkin and Lozovsky 1979

G. †Bukobaja Ochev 1966

G. †Hyperokynodon Plieninger 1852

Subfm. †Lonchorhynchinae Säve-Söderbergh 1935

Invalid names: Aphaneramminae Hammer 1987 [synonym]

G. †Lyrocephalus Wiman 1914

G. †Prothoosuchus Getmanov 1989

Subfm. †Tertreminae Schoch and Milner 2000

G. †Tertremoides Lehman 1979

G. †Trematolestes Schoch 2006

Subfm. †Trematosaurinae Watson 1919

G. †Trematosaurus Burmeister 1849

G. †Trematotegmen Getmanov 1982

Invalid names: Lyrocephalinae Säve-Söderbergh 1935 [empty], Thoosuchinae Getmanov 1989 [empty], Trematosaurus kannemeyeri Broom 1909 [nomen dubium]

Fm. †Wetlugasauridae Säve-Söderbergh 1935

G. †Sassenisaurus Nilsson 1942

Invalid names: Gonioglyptus huxleyi Lydekker 1882 [nomen dubium], Indolyrocephalus Tripathi 1969 [nomen dubium], Indolyrocephalus panchetensis Tripathi 1969 [nomen dubium]

Invalid names: Metoposauroidea Watson 1919 [empty]

Invalid names: Boreosaurus Nilsson 1943 [nomen dubium], Boreosaurus thorslundi Nilsson 1943 [nomen dubium], Brachyopomorpha Warren and Marsicano 2000 [empty], Cryobatrachus Colbert and Cosgriff 1974 [nomen dubium], Cryobatrachus kitchingi Colbert and Cosgriff 1974 [nomen dubium], Diadetognathus Miall 1874 [nomen dubium], Diadetognathus varvicensis Miall 1874 [nomen dubium], Labyrinthodon panchetensis Tripathi 1969 [nomen dubium], Laccocephalus Watson 1919 [nomen dubium], Laccocephalus insperatus Watson 1919 [nomen dubium], Mastodonsaurus andriani Münster 1839 [nomen dubium], Mastodonsaurus fuerstenberganus Meyer 1847 [nomen dubium], Mastodonsaurus indicus Lydekker 1890 [nomen dubium], Mastodonsaurus meyeri Münster 1834 [nomen dubium], Pachygonia Huxley 1865 [nomen dubium], Pachygonia incurvata Huxley 1865 [nomen dubium], Plagiosauroidea Abel 1919 [empty]

Diagnosis

No diagnoses are available