TY  - BOOK
AU  - Carter,Claire
AU  - Churkin,Michael
ED  - United States
TI  - Ordovician and Silurian graptolite succession in the Trail Creek area, central Idaho--a graptolite zone reference section
U1  - 566 
PY  - 1977///
CY  - Washington
PB  - U.S. Government of Printing Office
KW  - Graptolites
KW  - Idaho
KW  - Custer County
KW  - Blaine County
KW  - Paleontology
KW  - Ordovician
KW  - Silurian
N1  - Bibliography: p. 32-33
ER  -