Conodonts from Middle Devonian strata of the Michigan basin
By: by R. William Orr.
Series: Geological Survey bulletin -- 45; Geological Survey bulletin (Bloomington, Ind.) -- 45.
Publisher: Geological Survey
Published: 1971
Place of publication: Bloomington, Ind
Language: eng
Number of pages: 110
Subjects: Conodonts -- Michigan Basin (Mich. and Ont.); Conodonts -- Indiana.; Paleontology -- Devonian.; Paleontology -- Michigan Basin (Mich. and Ont.); Paleontology -- Indiana.
Notes: Errata slip inserted.

Bibliography: p. 60-69.