Some Middle Ordovician brachiopods and trilobites from the basin ranges, Western United States.
Subtitle: With stratigraphic sections A, north of Pyramid Peak, Calif.
By: by R. J. Ross, Jr., and B, in Specter Range, Nev., by Harley Barnes.
Series: Geological Survey professional paper ;; 523-D.; Contributions to paleontology; Geological Survey professional paper ;; 523-D.; Geological Survey professional paper.
Publisher: U.S. Govt. Print. Off.
Published: 1967
Place of publication: Washington
Language: eng
Number of pages: 43
Subjects: Trilobites -- West (U.S.); Brachiopoda, Fossil -- West (U.S.); Paleontology -- Ordovician.; Paleontology -- West (U.S.)
Notes: Bibliography: p. 38-39.