Usage:
Hilltop Formation (OK*)
Geologic age:
Late Pennsylvanian (Missourian)*
Type section, locality, area and/or origin of name:
Type section: in and near the Wewoka Brick and Tile Company pit, north of Wewoka Creek, in sec. 11, T. 8 N., R. 7 E., Seminole Co., OK (Tanner, 1956).
AAPG geologic province:
Chautauqua platform*
Arkoma 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 ([ ]).