• Tappenosaurus ("Tappen's lizard") is an extinct genus of synapsids from the Middle Permian of Texas. American paleontologists Everett C. Olson and James...
    3 KB (262 words) - 19:42, 8 March 2025
  • Thumbnail for Dimetrodon
    largest predators of the Early Permian, although the closely related Tappenosaurus, known from skeletal fragments in slightly younger rocks, may have been...
    84 KB (9,376 words) - 00:02, 16 May 2025
  • Microurania Novocynodon? Phthinosuchus? Tappenosaurus? Rhopalodontidae? Phthinosaurus? Rhopalodon Phreatosuchidae? Phreatosaurus Phreatosuchus...
    860 bytes (28 words) - 03:32, 5 December 2021
  • Thumbnail for Tapinocephalus
    Microurania Novocynodon? Phthinosuchus? Tappenosaurus? Rhopalodontidae? Phthinosaurus? Rhopalodon Phreatosuchidae? Phreatosaurus Phreatosuchus...
    6 KB (544 words) - 21:04, 30 March 2025
  • Thumbnail for Therapsida
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    30 KB (2,943 words) - 20:48, 7 May 2025
  • Thumbnail for Rhopalodon
    Microurania Novocynodon? Phthinosuchus? Tappenosaurus? Rhopalodontidae? Phthinosaurus? Rhopalodon Phreatosuchidae? Phreatosaurus Phreatosuchus...
    3 KB (210 words) - 21:05, 30 March 2025
  • neglecta †Syringopora – tentative report †Tainoceras †Tappenosaurus – type locality for genus †Tappenosaurus magnus – type locality for species †Tarphyceras...
    118 KB (4,567 words) - 04:48, 29 April 2025
  • Thumbnail for Dimetrodon borealis
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    8 KB (983 words) - 19:09, 15 May 2025
  • Thumbnail for Largest prehistoric animals
    world's first fully terrestrial apex predators. The Middle Permian Tappenosaurus was estimated at 5.5 m (18 ft) in length, nearly as large as the largest...
    410 KB (42,872 words) - 18:50, 18 May 2025
  • Thumbnail for Ophiacodontidae
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    8 KB (554 words) - 21:11, 30 March 2025
  • Thumbnail for Mycterosaurus
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    21 KB (2,268 words) - 20:46, 30 March 2025
  • Thumbnail for Eupelycosauria
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    10 KB (775 words) - 01:24, 10 April 2025
  • Thumbnail for Largest and heaviest animals
    apex predators. Tappenosaurids (Tappenosauridae) The Middle Permian Tappenosaurus was estimated at 5.5 m (18 ft) in length which is comparable in size...
    172 KB (17,002 words) - 12:31, 13 May 2025
  • Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    4 KB (459 words) - 00:52, 23 November 2021
  • Thumbnail for Aerosaurus
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    18 KB (2,121 words) - 20:46, 30 March 2025
  • Thumbnail for Heleosaurus
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    14 KB (1,799 words) - 20:46, 30 March 2025
  • Thumbnail for Sphenacodontoidea
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    7 KB (397 words) - 19:34, 31 March 2025
  • Thumbnail for Dinocephalia
    Microurania Novocynodon? Phthinosuchus? Tappenosaurus? Rhopalodontidae? Phthinosaurus? Rhopalodon Phreatosuchidae? Phreatosaurus Phreatosuchus...
    11 KB (918 words) - 19:25, 25 April 2025
  • Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    1 KB (91 words) - 20:46, 30 March 2025
  • Thumbnail for Sphenacodontia
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    7 KB (471 words) - 19:34, 31 March 2025
  • Thumbnail for Edaphosaurus
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    36 KB (4,273 words) - 04:43, 18 April 2025
  • Thumbnail for Titanophoneus
    Microurania Novocynodon? Phthinosuchus? Tappenosaurus? Rhopalodontidae? Phthinosaurus? Rhopalodon Phreatosuchidae? Phreatosaurus Phreatosuchus...
    3 KB (223 words) - 13:36, 16 April 2024
  • Thumbnail for Eutheriodontia
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    4 KB (450 words) - 11:05, 3 February 2025
  • Thumbnail for Moschops
    Microurania Novocynodon? Phthinosuchus? Tappenosaurus? Rhopalodontidae? Phthinosaurus? Rhopalodon Phreatosuchidae? Phreatosaurus Phreatosuchus...
    8 KB (742 words) - 21:04, 30 March 2025
  • Thumbnail for Callibrachion
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    21 KB (2,371 words) - 18:50, 21 December 2024
  • Thumbnail for Cotylorhynchus
    such as Knoxosaurus, Gorgodon, Dimacrodon, Eosyodon, Driveria, and Tappenosaurus. In 1995 Sidor and Hopson reinterpreted the fossils of all these taxa...
    77 KB (8,382 words) - 22:58, 5 March 2025
  • Thumbnail for Theriodontia
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    7 KB (643 words) - 05:01, 31 March 2025
  • Thumbnail for Estemmenosuchus
    Microurania Novocynodon? Phthinosuchus? Tappenosaurus? Rhopalodontidae? Phthinosaurus? Rhopalodon Phreatosuchidae? Phreatosaurus Phreatosuchus...
    9 KB (709 words) - 21:04, 30 March 2025
  • Thumbnail for Sphenacodontidae
    Ctenospondylus Cutleria? Dimetrodon Eosyodon Macromerion Neosaurus Secodontosaurus Sphenacodon Steppesaurus? Tappenosaurus? Tetraceratops? Therapsida see below↓...
    8 KB (694 words) - 23:05, 5 March 2025
  • Thumbnail for Australosyodon
    Microurania Novocynodon? Phthinosuchus? Tappenosaurus? Rhopalodontidae? Phthinosaurus? Rhopalodon Phreatosuchidae? Phreatosaurus Phreatosuchus...
    5 KB (394 words) - 01:35, 4 May 2025