Ordovician and Silurian graptolite succession in the Trail Creek area, central Idaho--a graptolite zone reference section
By: by Claire Carter and Michael Churkin, Jr.
Contributors: Churkin, Michael, 1932- joint author.
Series: Geological Survey professional paper ; 1020; Geological Survey professional paper ;; 1020.
Publisher: U.S. Govt. Print. Off.
Published: 1977
Place of publication: Washington
Language: eng
Number of pages: 37
Subjects: Graptolites -- Idaho -- Custer County.; Graptolites -- Idaho -- Blaine County.; Paleontology -- Ordovician.; Paleontology -- Silurian.; Paleontology -- Idaho -- Custer County.; Paleontology -- Idaho -- Blaine County.
Notes: Bibliography: p. 32-33.