Studies of the Mowry shale (Cretaceous) and contemporary formations in the United States and Canada
By: by John B. Reeside, Jr., and William A. Cobban: a stratigraphic and paleontologic study of five large assemblages of gastroplitine cephalopods interpreted as five species of Neogastroplites having an unusual degree of variability.
Contributors: Cobban, William Aubrey, 1916- joint author.
Publisher: U.S. Govt. Print. Off.
Published: 1960
Place of publication: Washington
Language: eng
Number of pages: 126
Subjects: Shale.; Paleontology -- Cretaceous.; Paleontology -- North America.; Ammonoidea.
Description: A stratigraphic and paleontologic study of five large assemblages of gastroplitine cephalopods interpreted as five species of Neogastroplites having an unusual degree of variability.
Notes: Bibliography: p. 118-121.