The American species of orthophragmina and lepidocyclina
By: by Joseph A. Cushman.
Contributors: Geological Survey (U.S.)
Series: U.S. Geological Survey professional paper -- 125-D; Shorter contributions to general geology
Publisher: U.S. Government Printing Office
Published: 1920
Place of publication: Washington, DC
Language: eng
Number of pages: 108
Notes: Bibliogr.

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