thecodont(redirected from Thecodontian)
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Any of various extinct early archosaurs that existed in the Permian and Triassic Periods and had teeth set in sockets rather than attached directly to the jaw. The group Thecodontia in which they were once placed is no longer in scientific use.
1. (Zoology) (of mammals and certain reptiles) having teeth that grow in sockets
2. (Zoology) of or relating to teeth of this type
(Palaeontology) any extinct reptile of the order Thecodontia, of Triassic times, having teeth set in sockets: they gave rise to the dinosaurs, crocodiles, pterodactyls, and birds
[C20: New Latin Thecondontia, from Greek thēkē case + -odont]
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|Noun||1.||thecodont - presumably in the common ancestral line to dinosaurs and crocodiles and birds|
archosaur, archosaurian, archosaurian reptile - extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts