Title: The late Cretaceous ammonites Scaphites leei Reeside and Scaphites hippocrepis (DeKay) in the western interior of the United States
First published: 1969
Description: Additional title page description: Three chronological forms each of Scaphites leei and Scaphites hippocrepis occur in dimorphic pairs and provide a means of correlating thin units of strata.
Subjects: Paleontology, Scaphites, Ammonoidea
Places: United States
Time periods: Cretaceous
LC classification: QE75 .P9 no. 619