Therapsida
oxford
views updated May 08 2018Therapsida Order of
synapsid reptiles, ancestral to the
mammals, ranging from the latter part of the
Permian to early
Jurassic times.
A Dictionary of Earth Sciences AILSA ALLABY and MICHAEL ALLABY
Therapsida
oxford
views updated May 18 2018Therapsida (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.
A Dictionary of Zoology MICHAEL ALLABY
