anapsid reptile


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Noun1.anapsid reptile - primitive reptile having no opening in the temporal region of the skullanapsid reptile - primitive reptile having no opening in the temporal region of the skull; all extinct except turtles
reptile, reptilian - any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms
Anapsida, subclass Anapsida - oldest known reptiles; turtles and extinct Permian forms
chelonian, chelonian reptile - a reptile of the order Chelonia
References in periodicals archive ?
Anapsid reptiles have no holes there; diapsid reptiles have two -- upper and lower -- between their cheek bones.