Systematics and evolution of Phacops rana (Green, 1832) and Phacops iowensis Delo, 1935 (Trilobita) from the Middle Devonian of North America.
Series: Bulletin of the American Museum of Natural History,; v. 147, article 2; Bulletin of the American Museum of Natural History ;; v. 147, article 2.
Publisher: [American Museum of Natural History]
Published: 1972
Place of publication: New York
Language: eng
Number of pages: 113
Subjects: Phacops.; Paleontology -- Devonian.; Paleontology -- North America.
Notes: Bibliography: p. 111-113.
Drawn largely from the author's thesis, Columbia, 1969.