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The Diatom genus Actinocyclus in the western United States J. Platt Bradbury and William N. Krebs, editors. - Washington U.S. GPO 1993. - 73 p. - U.S. Geological Survey professional paper 1543 .

Includes bibliographical references.

A. Actinocyclus species from lacustrine Miocene deposits of the western United States / by J. Platt Bradbury and William N. Krebs -- B. Geologic ranges of lacustrine Actinocyclus species, western United States / by William N. Krebs and J. Platt Bradbry.

LCCN: 93035637

Subjects--Topical Terms:
Actinocyclus, Fossil--West (U.S.)
Paleobotany--West (U.S.)
Paleobotany--Miocene.

LC Class. No.: QE955 / .D53 1993

Dewey Class. No.: 561/.93

Gov. Doc. Class. No.: I19.16:P1543A&B