James A. Hopson

Late Early Jurassic Mammaliaforms from Huizachal Canyon, Tamaulipas, México (2008)

Marisol Montellano, James A. Hopson, James M. Clark

Previous reports of the fossil vertebrates from the upper Lower Jurassic La Boca Formation of Tamaulipas, México, presented descriptions of a tritylodontid therapsid, a burrowing diapsid,...

A NEW BURNETIAMORPH THERAPSID FROM THE TEEKLOOF FORMATION, PERMIAN, OF SOUTH AFRICA (2004)

CHRISTIAN A. SIDOR, JAMES A. HOPSON, ANDRÉ W. KEYSER

A new biarmosuchian therapsid, Lobalopex mordax gen. and sp. nov., from the Permian Teekloof Formation (Tropidostoma Assemblage Zone) of the Victoria West District, South Africa, is described on the...

Basicranial anatomy of Priacodon fruitaensis (Triconodontidae, Mammalia) from the Late Jurassic of Colorado, and a reappraisal of mammaliaform interrelationships. American Museum novitates ; no. 3183 (1996)

Rougier, Guillermo W., Wible, John R., Hopson, James A.

38 p. : ill. ; 26 cm.

Avances en el Estudio de la Fauna de Vertebrados Jurásicos del Cañón del Huizachal, Tamaulipas, México (1995)

Montellano Ballesteros, Marisol, Hernández Rivera, René, Clark, James, Fastovsky, David E., Hugo, Víctor, Reinoso, Rosales, ...

Avances en el Estudio de la Fauna de Vertebrados Jurásicos del Cañón del Huizachal, Tamaulipas, México (1995)

Montellano Ballesteros, Marisol, Fastovsky, David E., Hugo, Víctor, Reinoso, Rosales, Hopson, James A., Clark, James, ...

Comments on the Competitive Inferiority of the Multituberculates (1967)

Hopson, James A.

The Origin of the Mammalian Middle Ear (1966)

HOPSON, JAMES A.

A functional explanation is presented for the shift of the reptilian articular and quadrate into the mammalian middle ear to become the malleus and incus. Modification of the masticatory apparatus of...