Shelled creatures and geological history
By: by Ray S. Bassler ... [et al.]
Contributors: Bassler, Ray S. b. 1878.
Series: The Smithsonian series -- v. 10
Publisher: Series Publishers
Published: 1949
Place of publication: New York
Language: eng
Number of pages: 375
Subjects: Invertebrates.; Crustacea.; Mollusks.; Geology -- North America.; Paleontology -- North America.
Notes: One colored plate accompanied by guard sheet with descriptive letterpress.

Earlier editions published under title: Shelled invertebrates of the past and present, with chapters on geological history.

"Selected bibliography" at end of each part.
Table of contents: value: Geological history of North America, by R. S. Bassler and C. E. Resser.; value: Crustaceans, by W. L. Schmitt.; value: Mollusks, by Paul Bartsch.