Pennsylvanian conodont biostratigraphy and paleoecology of northwestern Illinois
By: Glen K. Merrill.
Series: Microform publication - Geological Society of America -- 3; Microform publication -- 3
Publisher: Geological Society of America
Published: 1976
Place of publication: Boulder, Colo
Language: eng
Number of pages: 130
Subjects: Conodonts; Paleontology -- Pennsylvanian; Paleontology -- Illinois
Notes: Plates 14-17 also in microform.

The [4] leaves of plates also reproduced in hard copy.

Bibliography: p. 124-127.

Microfiche. Boulder, Colo. : Geological Society of America, 1975. -- 2 sheets.