Middle Jurassic (Bajocian and Bathonian) ammonites from northern Alaska
By: by Ralph W. Imlay.
Series: Geological Survey professional paper ; 854; Geological Survey professional paper ;; 854.
Publisher: U.S. Govt. Print. Off.
Published: 1976
Place of publication: Washington
Language: eng
Number of pages: 22
Subjects: Ammonoidea -- Alaska.; Paleontology -- Jurassic.; Paleontology -- Alaska.
Notes: Bibliography: p. 18-19.
Includes index.