Title: Pachydesmoceras Spath, 1922, a Cretaceous ammonite in Colorado
First published: 1991
Subjects: Paleontology, Ammonoidea, Stratigraphic Geology
Places: Colorado
Time periods: Cretaceous
LC classification: QE75 .B9 no. 1985A-F, QE807.A5 .B9 no. 1985A-F