The type Fox Hills Formation, Cretaceous Maestrichtian, South Dakota /
K. M. Waage.
- New Haven, 1968.
- v. : ill., part fold, maps part fold ; 26 cm.
- Peabody Museum of Natural History, Yale University ; . Bulletin 2 7 .
Includes bibliographical references (pt. 1. p. 168-171).
pt. 1. Stratigraphy and Paleoenviroments.-pt. 2. Systematics of the Bivalvia by Ian G. Speden.