The cranial anatomy and relationships of the synapsid Varanosaurus (Eupelycosauria: Ophiacodontidae) from the Early Permian of Texas and Oklahoma
Berman, David S.
Reisz, Robert R
Bolt, John R., 1940-
Annals of the Carnegie Museum.
[Pittsburgh] :Published by authority of the Board of Trustees of the Carnegie Institute,1901-
In Copyright. Digitized with the permission of the rights holder