Velazco, P. M. Buczek, A. J. Novacek, M. J. 2017 Two new tritylodontids (Synapsida, Cynodontia, Mammaliamorpha) from the Upper Jurassic, southwestern Mongolia American Museum Novitates 3874 1-35 Oligokyphus Bienotherium Bienotheroides Bocatherium Dianzhongia Dinnebitodon Kayentatherium Lufengia Montirictus Polistodon Stereognathus Tritylodon Xenocretosuchus Yunnanodon Yuanotherium Shartegodon Nuurtherium Osteology Maximum Parsimony Based on reanalysis of the original matrix. Velazco_etal_2017a