Usage:
No current usage.
(†Abilene Formation (TX) replaced with Arroyo Formation of Clear Fork Group. See Arroyo.)
Geologic age:
early Permian (Leonardian)
Type section, locality, area and/or origin of name:
Notable exposures around Abilene, [Taylor Co.], and perhaps southward beneath Callahan Divide, central northern TX (Wrather, 1917).
AAPG geologic province:
Bend arch
Permian 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 ([ ]).