Review of Ordovician pelecypods.
Series: Geological Survey professional paper; 695; Geological Survey professional paper ;; 695.
Publisher: U.S. Govt. Print. Off.
Published: 1971
Place of publication: Washington
Language: eng
Number of pages: 46
Subjects: Bivalvia, Fossil.; Paleontology -- Ordovician.
Notes: Bibliography: p. 37-41.