Eucynodontia


Eucynodontia is a clade of cynodont therapsids including mammals and most non-mammalian cynodonts. The oldest eucynodonts are known from the Early Triassic and possibly Late Permian. Eucynodontia includes two major subgroups, Cynognathia and Probainognathia.
The clade was named by Thomas Kemp in 1982.
In 2001, James Allen Hopson e.a. defined the clade Euynodontia as the least inclusive group containing Mammalia and Exaeretodon.