Chickachoc Chert (OK*)
Chickachoc Chert Member of Wapanucka Limestone (OK*)
Early Pennsylvanian (Morrowan)*
Named from post office called Chickachoc in 1901 and located at or near present station of Chockie, on Missouri, Kansas, and Texas RR, just east of border of Coalgate quadrangle and near type exposures of the chert lentil (Taff, personal commun., Jan. 26, 1931; Wilmarth, 1938).
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 ([ ]).