Fossil specimens of Macrochelys from the Tertiary of the plains / Rainer Zangerl --

v.10:no.2(1945)

The nature of shield abnormalities in the turtle shell / [by] Rainer Zangerl -- and Ralph G. Johnson --.

v.10:no.29(1957)

A new specimen of Desmatochelys lowi Williston; a primitive cheloniid sea turtle from the Cretaceous of South Dakota / Rainer Zangerl -- and Robert E. Sloan --.

v.14:no.2(1960)

Phylogeny of the chelydrid turtles : a study of shared derived characters in the skull / Eugene S. Gaffney --.

v.33:no.9(1975)