Orthaulax
Subtitle: a Tertiary guide fossil
By: by C. Wythe Cooke.
Series: Geological Survey professional paper -- 129-B; Shorter contributions to general geology
Publisher: U.S. Govt. Print. Off.
Published: 1921
Place of publication: [Washington
Language: eng
Number of pages: 37
Subjects: Gastropoda, Fossil.; Paleontology -- Tertiary.
Notes: Includes bibliographical references and index.