The skull of <i>Mesenosaurus romeri</i>, a small varanopseid (Synapsida: Eupelycosauria) from the Upper Permian of the Mezen River basin, northern Russia
Reisz, Robert R
Berman, David S.
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