• Thumbnail for Kayentatherium
    Kayentatherium is an extinct genus of tritylodontid cynodonts that lived during the Early Jurassic. It is one of two tritylodonts from the Kayenta Formation...
    5 KB (551 words) - 15:36, 8 August 2022
  • produced undeveloped fetus-like young like modern marsupials. A recent Kayentatherium shows that they indeed produced undeveloped young, but at litter sizes...
    16 KB (1,584 words) - 09:40, 27 February 2024
  • Thumbnail for Cynodontia
    perhaps Megazostrodon and Erythrotherium, would lose these. A specimen of Kayentatherium does indeed demonstrate that at least tritylodontids already had a fundamentally...
    26 KB (2,094 words) - 20:36, 25 April 2024
  • Thumbnail for Mammal
    bones. The oldest demonstration of this reproductive style is with Kayentatherium, which produced undeveloped perinates, but at much higher litter sizes...
    212 KB (22,683 words) - 14:21, 20 April 2024
  • Thumbnail for Prozostrodontia
    Triassic (Carnian), 233.23–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N Skull of Kayentatherium wellesi Gaur Scientific classification Domain: Eukaryota Kingdom: Animalia...
    7 KB (374 words) - 10:33, 23 November 2023
  • Formation in northeastern Arizona. It closely resembles the related genus Kayentatherium from the same formation. It is set apart by differences in the dentition...
    4 KB (450 words) - 13:04, 19 September 2021
  • Thumbnail for Probainognathia
    Kayentatherium...
    8 KB (317 words) - 13:18, 29 November 2023
  • Thumbnail for Mammaliamorpha
    Late Triassic (Carnian), 232–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N Skull of Kayentatherium wellesi, a tritylodontid Manatee Scientific classification Domain: Eukaryota...
    4 KB (215 words) - 19:25, 29 March 2024
  • Thumbnail for Dilophosaurus
    Scutellosaurus. Synapsids include the tritylodontids Dinnebitodon, Kayentatherium, and Oligokyphus, morganucodontids, the possible early true mammal Dinnetherium...
    119 KB (14,581 words) - 14:12, 21 April 2024
  • Thumbnail for Epipubic bone
    pregnancy. This however apparently did not prevent large litter sizes; Kayentatherium is now known to have given birth to litters of 38 undeveloped young...
    8 KB (890 words) - 19:19, 7 April 2024