Revision of the oligopygoid echinoids
By: by Porter M. Kier.
Series: Smithsonian miscellaneous collections -- v. 152, no. 2; Publication -- 4702; Publication (Smithsonian Institution) -- 4702.
Publisher: Smithsonian Institution Press
Published: 1967
Place of publication: Washington
Language: eng
Number of pages: 149
Subjects: Sea urchins, Fossil.
Other titles: Oligopygoid echinoids
Notes: At head of title: Charles D. and Mary Vaux Walcott Research Fund.

"October 13, 1967."

Includes bibliographical references and index.