Ammonites of early cretaceous age (Valanginian and Hauterivian) from the Pacific coast states
Series: Geological Survey (U.S.). Professional paper -- 334-F; Shorter contributions to general geology; Professional paper (Geological Survey (U.S.)) -- 334-F.
Publisher: U.S. Govt. Print. Off.
Published: 1960
Place of publication: Washington
Language: eng
Number of pages: 228
Subjects: Ammonoidea; Stratigraphic Geology; Paleontology
Description: "The ammonite succession provides correlations within the Pacific Coast States and with other areas.
Notes: Includes bibliographical references and index.