Fresh-water mollusks of Cretaceous age from Montana and Wyoming
By: [by Teng-Chien Yen].
Series: Geological Survey professional paper -- 233-A; Shorter contributions to general geology
Publisher: U.S. Govt. Print. Off.
Published: 1951
Place of publication: [Washington
Language: eng
Number of pages: 20
Subjects: Mollusks, Fossil -- Montana.; Mollusks, Fossil -- Wyoming -- Lincoln County.; Gastropoda, Fossil -- Montana.; Gastropoda, Fossil -- Wyoming -- Lincoln County.; Paleontology -- Montana -- Cretaceous.; Paleontology -- Wyoming -- Cretaceous.
Notes: Includes bibliographical references and index.
Table of contents: value: Part 1. A fluviatile fauna from the Kootenai formation near Harlowton, Montana; value: Part 2. An upper Cretaceous nonmarine molluscan fauna from the Leeds Creek area, Lincoln County, Wyoming.