We found 1 definitions of anapsides from 1 different sources.
NounPlural: anapsids |
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anapsid - primitive reptile having no opening in the temporal region of the skull; all extinct except turtles | ||
anapsid reptile | ||
diapsid, diapsid reptile reptile having a pair of openings in the skull behind each eye | ||
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 |