Usage:
Fairpoint Member of Fox Hills Formation (SD)
Subunits:
Stoneville coal facies (SD).
Geologic age:
Late Cretaceous
Type section, locality, area and/or origin of name:
Type section: from NE/4 NW/4 NE/4 sec. 13, T. 9 N., R. 10 E. to NW/4 NW/4 NE/4 sec. 16, T. 9 N., R. 11 E., Meade Co., SD (Pettyjohn, 1967).
AAPG geologic province:
Williston 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 ([ ]).