Lower Jurassic (Pliensbachian and Toarcian) ammonites from eastern Oregon and California
By: by Ralph W. Imlay.
Series: Geological Survey professional paper ;; 593-C.; Contributions to paleontology; Geological Survey professional paper ;; 593-C.; Geological Survey professional paper.
Publisher: U.S. Govt. Print. Off.
Published: 1968
Place of publication: Washington
Language: eng
Number of pages: 51
Subjects: Ammonoidea.; Paleontology -- Jurassic.; Paleontology -- Oregon -- Grant Co.; Paleontology -- California.
Description: "Ammonite faunas of Mediterranean affinities characterize the upper part of Lower Jurassic sequences in Oregon and California."
Notes: Bibliography: p. 46-48.