American upper cretaceous echinoidea
By: by C. Wythe Cooke.
Contributors: Geological Survey (U.S.)
Series: U.S. Geological Survey professional paper -- 254-A; Shorter contributions to general geology
Publisher: U.S. Government Printing Office
Published: 1953
Place of publication: Washington, DC
Language: eng
Number of pages: 44
Subjects: Sea urchins, Fossil.; Paleontology -- United States.; Paleontology -- Guatemala.; Paleontology -- Cretaceous.
Notes: Bibliogr.

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