Any of a group of amniote vertebrates that first emerged in the late Permian Period, characterized by a single opening in the temporal region on each side of the skull and including the mammals along with various extinct groups more closely related to mammals than to other amniotes.
Any of various amniote vertebrates that emerged in the Permian Period and diversified in the Triassic, including the mammals, their ancestors, and their relatives.
primitive reptile having no opening in the temporal region of the skull; all extinct except turtles
Find another word for anapsid. In this page you can discover 4 synonyms, antonyms, idiomatic expressions, and related words for anapsid, like: diapsid, synapsid, therapsid and anapsid reptile.