Buku yang Dikarang by Edwin C. Galbreath

Pliocene and Pleistocene Records of Fossil Turtles from Western Kansas and Oklahoma University of Kansas Publications Museum of Natural History Volume 1

A New Extinct Emydid Turtle from the Lower Pliocene of Oklahoma

A New Species of Heteromyid Rodent from the Middle Oligocene of Northeast Colorado with Remarks on the Skull