franzanth:A study of Saurian morphology: Testudinata (part 1)Considering the amount of details they
franzanth:A study of Saurian morphology: Testudinata (part 1)Considering the amount of details they all carry on their back and how difficult it is to find any online data about weird, old, dead turtles… I can safely report that. Turtles. Are. Hard. (sorry)Anyway, here are three basal testudines to kick off the clade. Proganochelys is the oldest stem-turtle known to date from late Triassic. It had a heavily armored shell, spiked tail that ended with a club, and neck spikes to protect its non-retractable neck.Kayentachelys lived in Early Jurassic Kayenta Formation (now Arizona). It was recently identified to be more primitive than previously thought, placing it outside the two major groups containing all extant turtles.Meiolania, being a primitive genus, only went extinct as recent as 2,000-3,000 years ago. It was a large terrestrial turtle which had knob like protrusions on the sides of its head and spiky tails superficially resembling Glyptodonts.- - -Daily Drawings T-shirt · Other Products · Find me elsewhere -- source link