Usage:
Wichita Group (TX*)
Also called /Wichita-Albany Group (TX) in some reports.
[The use of a hyphen between undifferentiated [groups] is not considered proper notation (CSN, 1933).]
Subunits:
(alphabetical) --all in TX: Admiral Formation*, Bead Mountain Formation, Beaverburk Limestone, Belle Plains Formation*, Bluff bone bed (informal), Camp Creek Shale, [†?]Clyde Formation*, Lueders Formation or Lueders Limestone*, Moran Formation*, Nocona Formation, Petrolia Formation, Pueblo Formation*, Putnam Formation*, Saddle Creek Limestone, Stockwether Limestone, Waggoner Ranch Formation, Waldrip Shale.
Geologic age:
early Permian (Leonardian)*
Type section, locality, area and/or origin of name:
Named from Wichita River and Wichita Co., northern TX (US geologic names lexicon, USGS Bull. 896).
AAPG geologic province:
Bend arch*
Fort Worth syncline*
Palo Duro 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 ([ ]).