A trematopsid skull from the Lower Permian, and analysis of some characters of the dissorophoid (Amphibia, Labyrinthodontia) otic notch / John R. Bolt.

v.30:no.3(1974)

Osteology, function, and evolution of the Trematopsid (Amphibia: Labyrinthodontia) nasal region / [by] John R. Bolt --.

v.33:no.2(1974)