Usage:
Nocona Formation of Wichita Group (TX)
Geologic age:
early Permian (Wolfcampian and Leonardian)
Type section, locality, area and/or origin of name:
Stratotype: at river bluff about 3.6 mi north of Ringgold, Montague Co., TX. Origin of name not stated by author, but probably named from town of Nocona in Montague Co. (Hentz, 1988).
AAPG geologic province:
Bend arch
Palo Duro basin
Fort Worth syncline
South Oklahoma folded belt
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 ([ ]).