Genus |
Authors |
Year |
Status |
Age |
Location |
Notes |
Aerosaurus |
Romer
|
1937 |
Valid. |
Late Carboniferous[1] - Lower Permian[2] |
United States of America[2] |
|
Angelosaurus |
Olson
Beerbower |
1953 |
Valid. |
Upper Permian[3] |
United States of America[3] |
|
Anglosaurus |
Bruner |
1991 |
Sic |
N/A |
N/A |
Incorrect spelling for Angelosaurus[4] |
Apsisaurus |
Laurin |
1991 |
Valid. |
Lower Permian[5] |
United States of America[5] |
Formerly assigned as a "eosuchian" diapsid.[6] |
Archaeobelus |
Cope |
1877 |
Syn. |
N/A |
N/A |
Synonym of Clepsydrops[4] |
Archaeothyris |
Reisz |
1972 |
Valid. |
Upper Carboniferous[1] |
United States of America[1] |
|
Archaeovenator |
Reisz
Dilkes
|
2003 |
Valid. |
Upper Carboniferous[7] |
United States of America[7] |
|
Arribasaurus |
Williston |
1914 |
Syn. |
N/A |
N/A |
Synonym of Ophiacodon[8] |
Baldwinonus |
Romer
Price
|
1940 |
Valid. |
Late Carboniferous[1] - Early Permian[9] |
United States of America[9] |
|
Basicranodon |
Vaughn
|
1958 |
Syn. |
Lower Permian[1] |
United States of America[1] |
Synonym of Mycterosaurus[10] |
Bathyglyptus |
Case
|
1911 |
Syn. |
N/A |
N/A |
Synonym of Dimetrodon[8] |
Bathygnathus |
Leidy
|
1854 |
Valid. |
Lower Permian[4] |
United States of America[4] |
|
Brachycnemius |
Williston
|
1911 |
Syn. |
N/A |
N/A |
Synonym of Edaphosaurus[4][8] |
Callibrachion |
Boule
Glangeau |
1893 |
Syn. |
N/A |
N/A |
Synonym of Haptodus[8] |
Casea |
Williston
|
1910 |
Valid. |
Lower Permian[1] |
France and United States of America[1] |
|
Caseoides |
Olson
Beerbower
|
1953 |
Valid. |
Lower Permian[11] |
United States of America[11] |
|
Caseopsis |
Olson
|
1962 |
Valid. |
Upper Permian[12] |
United States of America[12] |
|
Clepsydrops |
Cope
|
1875 |
Valid. |
Late Carboniferous[4] |
United States of America[4] |
|
Colobomycter |
Vaughn |
1958 |
Valid. |
Lower Permian[4] |
United States of America[4] |
It is a protorothyridid eureptile[13] |
Cotylorhynchus |
Stovall
|
1937 |
Valid. |
Lower Permian[1] |
United States of America[1] |
|
Cryptovenator |
Fröbisch
Schoch
Müller
Schindler
Schweiss |
2011 |
Valid. |
Late Carboniferous[14] |
Germany[14] |
Ctenorhachis |
Hook
Hotton
|
1991 |
Valid. |
Upper Permian[15] |
United States of America[15] |
|
Ctenospondylus |
Romer
|
1936 |
Valid. |
Lower Permian[11] |
United States[11] |
|
Cutleria |
Lewis
Vaughn
|
1965 |
Valid. |
Early Permian[16] |
United States of America[16] |
|
Delorhynchus |
Fox
|
1962 |
Valid. |
Lower Permian[9] |
United States of America[9] |
Originally descript as a pelycosaur, but probably a parareptile[17] |
Datheosaurus |
Schroeder |
1905 |
Syn. |
N/A |
N/A |
Synonym of Haptodus[8] |
Dimacrodon |
Olson
Beerbower |
1953 |
Valid? |
Lower Permian[18] |
United States[18] |
Originally descript as an anomodont therapsid by Olson & Beerbower (1953) and Olson (1962), it lacks any diagnostic features of anomodonts and rather represent pelycosaur-grade synapsids[18] |
Dimetrodon |
Cope
|
1878 |
Valid. |
Early Permian[19] - Middle Permian |
United States of America[19] and Germany [20] |
|
Diopaeus |
Cope |
1892 |
Syn. |
N/A |
N/A |
Synonym of Ophiacodon[8] |
Echinerpeton |
Reisz
|
1972 |
Valid. |
Upper Carboniferous[21] |
Canada[21] |
|
Edaphosaurus |
Cope
|
1882 |
Valid. |
Late Carboniferous[19] - Lower Permian[22] |
Czech Republic [19] and United States of America[22] |
|
Elcabrosaurus |
Case
|
1907 |
Syn. |
N/A |
N/A |
Synonym of Sphenacodon[23] |
Elliotsmithia |
Broom
|
1937 |
Valid. |
Middle-Upper Permian[24] |
South Africa[24] |
|
Embolophorus |
Cope
|
1878 |
Syn. |
N/A |
N/A |
Synonym of Dimetrodon[8] |
Ennatosaurus |
Efremov
|
1956 |
Valid. |
Lower Permian[25] |
Russia[25] |
|
Eothyris |
Romer
|
1937 |
Valid. |
Lower Permian[2] |
United States of America[2] |
|
Eumatthevia |
Broom |
1930 |
Syn. |
N/A |
N/A |
Synonym of Mycterosaurus[8] |
Euromycter |
Reisz
Maddin
Fröbisch
Falconnet |
2011 |
Valid. |
Early-Late Permian[26] |
France[26] |
|
Glaucosaurus |
Williston
|
1915 |
Valid. |
Lower Permian[27] |
United States of America[27] |
|
Haptodus |
Gaudry
|
1866 |
Valid. |
Late Carboniferous[1] - Lower Permian[28] |
United States of America[1] and Europe[28] |
|
Heleosaurus |
Broom |
1907 |
Valid. |
Upper Permian[29] |
South Africa[29] |
|
Ianthasaurus |
Reisz
Berman
|
1986 |
Valid. |
Late Carboniferous[22] |
United States of America[22] |
|
Ianthodon |
Kissel
Reisz |
2004 |
Valid. |
Upper Carboniferous[30] |
United States of America[30] |
|
Ianthosaurus |
Reisz
Berman
|
1986 |
Sic |
N/A |
N/A |
Incorrect spelling of Ianthasaurus |
Lupeosaurus |
Romer
|
1937 |
Valid. |
Lower Permian[2] |
United States of America[2] |
|
Macromerion |
Fritsch
|
1879 |
Valid. |
Upper Carboniferous[31] |
Germany[31] |
|
Mesenosaurus |
Efremov
|
1938 |
Valid. |
Lower Permian[25] |
Russia[25] |
|
Mesonosaurus |
Ivakhnenko
Kurzanov |
1979 |
Sic |
N/A |
N/A |
Incorrect spelling of Mesenosaurus |
Milosaurus |
DeMar
|
1970 |
Valid. |
Upper Carboniferous[4] |
United States of America[4] |
|
Mycterosaurus |
Williston
|
1915 |
Valid. |
Lower Permian[1] |
United States of America[1] |
|
Naosaurus |
Cope
|
1886 |
Syn. |
N/A |
N/A |
Synonym of Edaphosaurus[22] |
Neosaurus |
Nopsca
|
1923 |
Valid. |
Lower Permian[31] |
France[31] |
|
Nitosaurus |
Romer
|
1937 |
Valid. |
Lower Permian[2] |
United States of America[2] |
|
Oedaleops |
Langston
|
1965 |
Valid. |
Lower Permian[9] |
United States of America[9] |
|
Ophiacodon |
Marsh
|
1878 |
Valid. |
Late Carboniferous-Lower Permian[1] |
United States of America[1] and England[31] |
|
Oromycter |
Reisz
|
2005 |
Valid. |
Lower Permian[32] |
United States of America[32] |
|
Oxyodon |
Huene
|
1908 |
Preocc. |
N/A |
N/A |
Preoccupied by fish genus Oxyodon Brauer, 1906. Synonym of Sphenacodon[8] |
Palaeohatteria |
Credner
|
1888 |
Valid. |
Early Permian[33] |
Germany[33] |
|
Palaeosphenodon |
Baur |
1889 |
Syn. |
N/A |
N/A |
Synonym of Palaeohatteria |
Pantelosaurus |
von Huene
|
1925 |
Valid. |
Early Permian[34] |
Germany[34] |
|
Phreatophasma |
Efremov
|
1954 |
Valid. |
Middle Permian[25] |
Russia[25] |
|
Poecilospondylus |
Case
|
1910 |
Syn. |
N/A |
N/A |
Synonym of Varanosaurus[35] |
Poliosaurus |
Case |
1907 |
Syn. |
N/A |
N/A |
Synonym of Ophiacodon[8] |
Protoclepsydrops |
Carroll
|
1964 |
Valid. |
Upper Carboniferous[21] |
Canada[21] |
|
Pyozia |
Anderson
Reisz
|
2004 |
Valid. |
Middle Permian[36] |
Russia[36] |
|
Ruthenosaurus |
Reisz
Maddin
Fröbisch
Falconnet |
2011 |
Valid. |
Early-Late Permian[26] |
France[26] |
|
Ruthiromia |
Eberth
Brinkman |
1983 |
Valid. |
Lower Permian[37] |
United States of America[37] |
|
Scoliomus |
Williston
Case
|
1915 |
Syn. |
Lower Permian[38] |
United States of America[38] |
Junior synonym of Sphenacodon[38] |
Secodontosaurus |
Romer
|
1936 |
Valid. |
Lower Permian[4] |
United States of America[4] |
|
Sphenacodon |
Marsh
|
1878 |
Valid. |
Late Carboniferous[1]-Early Permian |
United States of America[1] and England[31] |
|
Stereophallodon |
Romer
|
1937 |
Valid. |
Late Carboniferous[9]-Early Permian[2] |
United States of America[2] |
|
Stereorhachis |
Gaudry
|
1880 |
Valid. |
Late Carboniferous[1] |
France[1] |
|
Theropleura |
Cope
|
1878 |
Syn. |
N/A |
N/A |
Synonym of Ophiacodon (in partium) and Dimetrodon (in partium)[8] |
Therosaurus |
von Huene |
1925 |
Syn. |
N/A |
N/A |
Synonym of Ophiacodon[8] |
Thrausmosaurus |
Fox
|
1962 |
Valid. |
Lower Permian[17] |
United States of America[17] |
The type species, T. serratidens, was declared to be a nomen dubium[17] |
Trichasaurus |
Williston
|
1913 |
Valid. |
Lower Permian[4] |
United States of America[4] |
Replacement name for Trispondylus Williston, 1910 |
Trispondylus |
Williston |
1910 |
Preocc. |
N/A |
N/A |
Preoccupied by phenacodontid Trispondylus Cope, 1884 |
Varanodon |
Olson
|
1965 |
Valid. |
Lower Permian[11] |
United States of America[11] |
|
Varanops |
Williston
|
1911 |
Valid. |
Lower Permian[1] |
United States of America[1] |
|
Varanosaurus |
Broili
|
1904 |
Valid. |
Lower Permian[1] |
United States of America[1] |
|
Xyrospondylus |
Reisz
Heaton
Pynn
|
1982 |
Valid. |
Upper Carboniferous[8] |
United States of America[8] |
|
Watongia |
Olson
|
1974 |
Valid. |
Middle Permian[39] |
United States of America[39] |
|
Winfeldia |
Romer |
1925 |
Syn. |
N/A |
N/A |
Synonym of Ophiacodon[8] |