 | Ophiacodontidae is an extinct family of early synapsids from the Carboniferous and Permian. Archaeothyris, and Clepsydrops were among the earliest ophiacodontids... 8 KB (550 words) - 15:40, 28 April 2024 |
 | synapsid clade, Benson's analysis (2012) placed a clade containing Ophiacodontidae and Varanopidae as the most basal synapsids, with Caseasauria occupying... 55 KB (5,615 words) - 04:25, 24 April 2024 |
 | Family Caseidae Suborder Eupelycosauria Family Varanopidae Family Ophiacodontidae Family Edaphosauridae Infraorder Sphenacodontia Family Sphenacodontidae... 12 KB (1,185 words) - 15:48, 24 March 2024 |
 | the second.[citation needed] Archaeothyris belonged to the family Ophiacodontidae, a group of early pelycosaurs that evolved early in the Late Carboniferous... 6 KB (509 words) - 15:41, 28 April 2024 |
 | †Ophiacodontidae Sphenacomorpha... 43 KB (3,308 words) - 19:42, 22 April 2024 |
 | "snake tooth") is an extinct genus of synapsid belonging to the family Ophiacodontidae that lived from the Late Carboniferous to the Early Permian in North... 9 KB (892 words) - 15:44, 28 April 2024 |
Petrolacosauridae Class Synapsida Order Pelycosauria Family Varanopidae Family Ophiacodontidae Family Edaphosauridae Family Sphenacodontidae List of Permian tetrapods... 4 KB (305 words) - 22:10, 31 December 2022 |
 | Archaeothyris belongs to the family Ophiacodontidae and appears in the Early Pennsylvanian... 10 KB (775 words) - 15:14, 6 April 2024 |
 | Eukaryota Kingdom: Animalia Phylum: Chordata Clade: Synapsida Family: †Ophiacodontidae Genus: †Varanosaurus Broili, 1904 Type species †Varanosaurus acutirostris... 4 KB (212 words) - 15:47, 28 April 2024 |
 | †Ophiacodontidae †Varanopidae... 81 KB (9,043 words) - 09:25, 20 March 2024 |
1875 in paleontology (section Ophiacodontidae) Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils. This includes the study... 3 KB (160 words) - 13:54, 12 June 2021 |
Pelycosauria Family Eothyrididae Family Caseidae Family Varanopidae Family Ophiacodontidae Family Edaphosauridae Family Sphenacodontidae Order Therapsida Tetraceratops... 6 KB (417 words) - 18:18, 9 February 2024 |
 | Ophiacodontidae... 16 KB (1,348 words) - 05:10, 27 February 2024 |
 | †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 28 KB (2,730 words) - 20:34, 25 April 2024 |
 | †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 7 KB (455 words) - 19:19, 14 April 2024 |
 | skeleton Lycaenops carnivorous therapsids fossil skull Ophiacodon ophiacodontidae synapsid fossil skeleton Seymouria primitive tetrapod fossil skeleton... 78 KB (6,690 words) - 12:52, 25 April 2024 |
 | †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 6 KB (527 words) - 10:33, 14 January 2024 |
| Ophiacodontidae Varanopidae... 6 KB (305 words) - 21:09, 12 August 2023 |
 | Varanopidae Ophiacodontidae Sphenacomorpha... 7 KB (397 words) - 23:10, 10 December 2023 |
extinction may have taken place in two phases: Edaphosauridae and Ophiacodontidae died out around the Kungurian–Roadian boundary, while Caseidae and... 18 KB (2,018 words) - 18:04, 11 February 2024 |
 | †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 4 KB (450 words) - 12:48, 16 November 2023 |
 | †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 36 KB (4,254 words) - 21:22, 29 February 2024 |
†Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 4 KB (303 words) - 15:18, 6 April 2024 |
 | †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 22 KB (2,210 words) - 14:18, 20 April 2024 |
 | †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 77 KB (8,362 words) - 13:32, 16 April 2024 |
 | †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 29 KB (2,508 words) - 20:52, 5 January 2024 |
†Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 14 KB (1,344 words) - 01:32, 22 February 2024 |
 | Ophiacodontidae Varanopidae... 7 KB (578 words) - 04:29, 4 February 2024 |
†Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 3 KB (200 words) - 17:12, 24 March 2024 |
| †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus... 8 KB (694 words) - 21:49, 4 January 2024 |