Fenestella from the Permian of west Texas

Bibliographic Details
Main Author:	Elias, Maxim K. 1889-1982
Other Authors:	Condra, Geo. E. 1869-1958 (joint author.)
Format:	Book
Published:	[New York] [Geological Society of America] 1957.
Series:	Memoir (Geological Society of America) 70.
Subjects:	Fenestella. Paleontology > Permian. Paleontology > Texas.