Preliminary range charts of conodonts from the Chester series (Mississippian) in the Illinois Basin
By: [by] Carl B. Rexroad [and] Charles Collinson.
Contributors: Collinson, Charles William, joint author.
Published: 1961
Place of publication: Urbana
Language: eng
Number of pages: 11
Subjects: Conodonts.; Paleontology -- Mississippian.; Paleontology -- Illinois Valley.
Other titles: Range chart of conodonts from the Chester series.
Notes: Bibliography: p. 10-11.
Cover title.