Noun
tritylodontid (plural tritylodontids)
(zoology) Any mammal-like therapsid in the family Tritylodontidae.
Hu, Yaoming; Meng, Jin; Clark, James M. "A New Tritylodontid from the Upper Jurassic of Xinjiang, China". Source: Internet
Tritylodontid cynodonts seem to have displayed lactation, based on their dental replacement patterns. Source: Internet