Steppesaurus is an extinct genus of basal Eupelycosauria belonging to the Sphenacodontidae, related to Dimetrodon and Sphenacodon, from the Late Permian...
2 KB (236 words) - 21:18, 20 September 2021
& clades Ctenorhachis Cutleria Macromerion Neosaurus Secodontosaurus Steppesaurus? Tetraceratops? Sphenacodontinae Cryptovenator Ctenospondylus Dimetrodon...
8 KB (694 words) - 21:49, 4 January 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
83 KB (9,194 words) - 04:52, 20 September 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
30 KB (2,927 words) - 02:53, 28 September 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
6 KB (305 words) - 21:09, 12 August 2023
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
36 KB (4,254 words) - 04:44, 7 September 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
7 KB (455 words) - 21:14, 8 August 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
2 KB (113 words) - 20:07, 14 November 2023
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
10 KB (775 words) - 22:18, 5 September 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
16 KB (1,348 words) - 19:08, 9 May 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
9 KB (892 words) - 15:44, 28 April 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
6 KB (526 words) - 08:26, 29 August 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
15 KB (1,513 words) - 02:09, 21 September 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
4 KB (450 words) - 12:48, 16 November 2023
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
64 KB (5,833 words) - 15:11, 22 August 2024
hudsoni A dubious sphenacodontid Gorgodon G. minutus Knoxosaurus K. niteckii Mastersonia M. driverensis Steppesaurus S. gurleyi Tappenosaurus T. magnus...
6 KB (426 words) - 15:04, 13 February 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
24 KB (2,429 words) - 04:19, 29 July 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
4 KB (303 words) - 15:18, 6 April 2024
recent lepospondyls, a dissorophoid, and some fragmentary fossils of Steppesaurus that Everett C. Olson interpreted as one of the oldest known therapsids...
3 KB (245 words) - 08:29, 9 September 2024
come the very fragmentary genera Steppesaurus and Mastersonia. In 1953, Olson and Beerbower first classified Steppesaurus among the sphenacodontid pelycosaurs...
78 KB (8,362 words) - 04:42, 7 September 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
29 KB (2,508 words) - 20:52, 5 January 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
6 KB (509 words) - 20:01, 22 July 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
6 KB (587 words) - 22:54, 4 February 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
3 KB (261 words) - 21:00, 20 September 2021
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
1 KB (61 words) - 20:56, 3 July 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
5 KB (438 words) - 15:47, 9 June 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
1 KB (53 words) - 15:45, 28 April 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
1 KB (76 words) - 15:44, 28 April 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
13 KB (1,507 words) - 15:37, 6 August 2024
Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
976 bytes (45 words) - 19:51, 21 November 2021