Usage:
Pony Creek Shale Member of Wood Siding Formation (KS*,NE*,OK*)
Pony Creek Shale of Vanoss Group (OK)
Pony Creek Shale of Wabaunsee Group (OK)
Pony Creek Shale Member of Wood Siding Formation of /Richardson subgroup [informal] of Wabaunsee Group (KS)
["Subgroup" not recognized as a formal stratigraphic rank term (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). Richardson subgroup considered informal and should not be capitalized.]
Geologic age:
Late Pennsylvanian (Virgilian)*
Type section, locality, area and/or origin of name:
Not designated. Named from exposures east of Pony Creek, between KS-NE line and 2 mi south of Falls City, Richardson Co., NE (Condra, 1927).
AAPG geologic province:
Forest City basin*
Cherokee 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 ([ ]).