Usage:
Ferguson Member of Parkman Sandstone (WY)
Geologic age:
Late Cretaceous
Type section, locality, area and/or origin of name:
Type section (subsurface): Farmers Union No. 1 Government-Ferguson [well], in SE/4 SE/4 sec. 13, T. 49 N., R. 76 W., Campbell Co., WY (Sabins and Peterson, 1961).
AAPG geologic province:
Powder River basin
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).