• Thumbnail for Proganochelys
    Proganochelys is a genus of extinct, primitive stem-turtle. Proganochelys was named by Georg Baur in 1887 as the oldest turtle in existence at the time...
    18 KB (2,028 words) - 04:21, 7 September 2024
  • Thumbnail for Pantestudines
    laterosphenoid bone, typical of Archosauriformes, in the stem-turtle Proganochelys. It may serve as a synapomorphy for this proposed clade. The cladogram...
    20 KB (1,491 words) - 15:13, 11 August 2024
  • Thumbnail for Turtle
    The development of a shell reached completion with the Late Triassic Proganochelys, with its fully developed carapace and plastron. Adaptations that led...
    126 KB (13,111 words) - 12:38, 22 August 2024
  • genus Proganochelys), the teeth have already been lost, and a keratin beak is suggested by the mandibles. Important differences between Proganochelys and...
    10 KB (678 words) - 22:45, 21 January 2023
  • the carapace, which shows both primitive and derived features. Like Proganochelys, Australochelys has large orbits and a ventral basioccipital tubercle...
    6 KB (621 words) - 00:56, 20 December 2021
  • Thumbnail for Neurocranium
    archosaurs and a few other archosauromorphs, as well as the stem-turtle Proganochelys. The singular basisphenoid forms the front lower part of the braincase...
    9 KB (1,044 words) - 15:25, 28 May 2024
  • Thumbnail for Testudinata
    and Middle Triassic records in the form of fossil tracks Skeleton of Proganochelys quenstedti, American Museum of Natural History Scientific classification...
    6 KB (414 words) - 16:35, 26 June 2024
  • Thumbnail for Sauria
    Proganochelys Testudines...
    21 KB (1,016 words) - 21:41, 2 September 2024
  • Thumbnail for Sauropterygia
    Proganochelys Testudines...
    21 KB (858 words) - 12:45, 4 July 2024
  • Thumbnail for Reptile
    Proganochelys Testudines (turtles)...
    138 KB (14,818 words) - 00:04, 11 September 2024