subclass Anapsida

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Related to subclass Anapsida: Diapsida, Euryapsid
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.subclass Anapsida - oldest known reptilessubclass Anapsida - oldest known reptiles; turtles and extinct Permian forms
class Reptilia, Reptilia - class of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates; once the dominant land animals
anapsid, anapsid reptile - primitive reptile having no opening in the temporal region of the skull; all extinct except turtles
class - (biology) a taxonomic group containing one or more orders