• Thumbnail for Varanosaurus
    implies, Varanosaurus may have looked superficially similar to present-day monitor lizards[citation needed], though not related at all. Varanosaurus had a...
    4 KB (212 words) - 15:47, 28 April 2024
  • Thumbnail for Varanops
    named by Samuel Wendell Williston in 1911 as a second species of Varanosaurus, Varanosaurus brevirostris. In 1914, Samuel W. Williston reassigned it to its...
    6 KB (587 words) - 22:54, 4 February 2024
  • Thumbnail for Ophiacodontidae
    weight of the large head. Traditionally, Archaeothyris, Ophiacodon, Varanosaurus and the briefly described Baldwinonus, Clepsydrops, Echinerpeton, Stereophallodon...
    8 KB (550 words) - 15:40, 28 April 2024
  • Thumbnail for Synapsida
    Varanosaurus acutirostris...
    57 KB (5,746 words) - 14:55, 8 July 2024
  • Thumbnail for Archaeothyris
    Varanosaurus acutirostris...
    6 KB (509 words) - 15:41, 28 April 2024
  • Meganeuron Eryops Lepidodendron Sigillaria Permian Seymouria Limnoscelis Varanosaurus Ophiacodon Sphenacodon Araeoscelis Dimetrodon Edaphosaurus Cordaites...
    8 KB (788 words) - 21:03, 28 June 2024
  • Thumbnail for Dimetrodon
    Restoration of Dimetrodon limbatus feeding on Varanosaurus acutirostris...
    81 KB (9,042 words) - 18:39, 27 June 2024
  • Thumbnail for Sphenacodontidae
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    8 KB (694 words) - 21:49, 4 January 2024
  • Thumbnail for Caseasauria
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    16 KB (1,348 words) - 19:08, 9 May 2024
  • Thumbnail for Melanedaphodon
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    2 KB (113 words) - 20:07, 14 November 2023
  • Thumbnail for Therapsida
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    28 KB (2,745 words) - 20:33, 9 July 2024
  • Thumbnail for Ophiacodon
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    9 KB (892 words) - 15:44, 28 April 2024
  • †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    15 KB (1,493 words) - 14:55, 8 July 2024
  • Thumbnail for Sphenacodontia
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    7 KB (455 words) - 19:19, 14 April 2024
  • Thumbnail for Edaphosaurus
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    36 KB (4,254 words) - 13:03, 23 May 2024
  • Thumbnail for Caseidae
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    64 KB (5,833 words) - 01:08, 4 January 2024
  • Thumbnail for Cotylorhynchus
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    78 KB (8,362 words) - 22:08, 28 May 2024
  • Thumbnail for Eothyris
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    13 KB (1,507 words) - 16:29, 28 November 2023
  • Thumbnail for Theriodontia
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    6 KB (526 words) - 23:20, 28 June 2024
  • Thumbnail for Eupelycosauria
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    10 KB (775 words) - 14:59, 11 May 2024
  • †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    976 bytes (45 words) - 19:51, 21 November 2021
  • Thumbnail for Eutheriodontia
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    4 KB (450 words) - 12:48, 16 November 2023
  • Thumbnail for Stereophallodon
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    1 KB (76 words) - 15:44, 28 April 2024
  • Thumbnail for Edaphosauridae
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    6 KB (305 words) - 21:09, 12 August 2023
  • Mycterosaurus longiceps Ophiacodon major Secodontosaurus obtusidens Varanosaurus wichitaensis Dimetrodon sp. Ophiacodon sp. Temnospondyls Broiliellus...
    6 KB (334 words) - 05:39, 17 December 2021
  • Thumbnail for Ianthodon
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    8 KB (741 words) - 15:20, 6 April 2024
  • Thumbnail for Ianthasaurus
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    3 KB (228 words) - 01:19, 8 September 2022
  • Thumbnail for Glaucosaurus
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    3 KB (261 words) - 21:00, 20 September 2021
  • Thumbnail for Secodontosaurus
    †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus...
    16 KB (1,706 words) - 08:39, 26 June 2024
  • extinct soon afterwards. Other pelycosaurs, including Secodontosaurus, Varanosaurus, and several species of Dimetrodon, were abundant, though the abundance...
    29 KB (2,209 words) - 21:24, 3 June 2024