Discovery of early Ordovician fossils in Bucks County, Pennsylvania
By: by John E. Repetski and Avery Ala Drake, Jr.
Contributors: Drake, Avery Ala, 1927-
Series: U.S. Geological Survey bulletin -- 1934-D; Shorter contributions to paleontology and stratigraphy
Publisher: U.S. G.P.O.
Published: 1991
Place of publication: [Washington
Language: eng
Subjects: Geology -- Pennsylvania -- Bucks County.; Paleontology -- Pennsylvania -- Bucks County -- Ordovician.; Paleontology -- Ordovician.; Conodonts -- Pennsylvania -- Bucks County.
Notes: Includes bibliographical references (p. 5-6).