The flora of the Ripley formation.

Bibliographic Details
Main Author:	Berry, Edward Wilber, 1875-1945
Format:	Government Document Book
Language:	English
Published:	Washington : U.S. Govt. Print. Off, 1925.
Series:	U.S. Geological survey. Professional paper 136
Subjects:	Paleobotany > Cretaceous. Paleobotany.

by Berry, Edward Wilber, 1875-1945
Published 1925

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