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 /
by S.P. Welles and John Cosgriff.
- Berkeley ; Los Angeles : University of California Press, 1965.
- 148 p. illus. ; 26 cm.
- University of California publications in geological sciences, v. 54 .
- 567.6 .