| Thecodontia 
 
 extinct terrestrial reptiles having teeth set in sockets;
 of the late Permian to Triassic
 • Syn:
 order Thecodontia
 • Hypernyms:
 animal order
 • Member Holonyms:
 Archosauria, subclass Archosauria
 • Member Meronyms:
 thecodont, thecodont reptile
 
 
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