No current usage.
(†Horse Creek Limestone (TX) replaced with Gouldbusk Limestone Member of Moran Formation. See Gouldbusk.)
early Permian (Asselian and Sakmarian; Wolfcampian)
Named from Horse Creek, Coleman Co., Colorado River region, central TX (US geologic names lexicons, USGS Bull. 896, 1200).
Bend arch
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 ([ ]).