S. P. Welles and John Cosgriff books & textbook
A revision of the Labyrinthodont family Capitosauridae and a description of Parotosaurus peabodyi. n. sp., from the Wupatki member of the Moenkopi formation of Northern Arizona,
S. P. Welles and John Cosgriff
University of California Press /1965-01-01 Hardcover
