The late Woodfordian Jules soil and associated Molluscan faunas
By: [by] John C. Frye ... [et al.].
Contributors: Frye, John Chapman, 1912-
Series: Circular -- 486; Circular (Illinois State Geological Survey) -- 486.
Published: 1974
Place of publication: Urbana
Language: eng
Number of pages: 11
Subjects: Fossil Mollusks; Fauna; Weekdieren; Glacial epoch; Grond
Notes: Cover title.

Bibliography: p. 11.