The American Upper Ordovician standard
Subtitle: Development of stratigraphic classification of Ordovician rocks in the Cincinnati region
By: by Malcolm P. Weiss and Carl E. Norman
Contributors: Norman, Carl E.; Ohio. Division of Geological Survey
Series: Information circular -- no. 26; Information circular (Ohio. Division of Geological Survey) -- no. 26.
Publisher: State of Ohio, Division of Geological Survey
Published: 1960
Place of publication: Columbus
Language: eng
Number of pages: 14
Subjects: Geology; Nomenclature; Stratigraphic Geology
Other titles: Development of stratigraphic classification of Ordovician rocks in the Cincinnati region.
Notes: Chart is folded, in pocket.

Pt. I is in the Journal of paleontology, v.33, no. 6, 1959, p. 1029-1068 and Pt. III is in the Journal of paleontology, v.34, no. 2, 1960, p. 237-294, Pt. IV is in Journal of Sedimentary Petrology, v. 30, No. 2, pp. 283-296, figs. 1-13, June, 1960.

Includes bibliographical references (p. 12-14).