Therapsida

views updated May 08 2018

Therapsida Order of synapsid reptiles, ancestral to the mammals, ranging from the latter part of the Permian to early Jurassic times.

Therapsida

views updated May 18 2018

Therapsida (class Reptilia, subclass Synapsida) An order of reptiles, ancestral to the mammals, that ranged from the latter part of the Permian to the early Jurassic.