- Cynodontia, division Cynodontia - a division of the order Therapsida from the Triassic period comprising small carnivorous tetrapod reptiles often with mammal-like teeth
--1 is a kind of division
--1 is a member of Therapsida, order Therapsida
--1 has members: cynodont; Exaeretodon, genus Exaeretodon