Permian sphenopsids from Antarctica /

Bibliographic Details
Main Author:	Rigby, J. F.
Format:	Government Document Book
Language:	English
Published:	Washington : U.S. Govt. Print. Off, 1969.
Series:	Geological Survey professional paper ; 613-F. Geological Survey professional paper. Contributions to paleontology.
Subjects:	Sphenopsida, Fossil. Paleobotany > Permian. Paleobotany > Antarctica.

by Rigby, J. F.
Published 1969

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