Usage:
Caddo Creek Formation of Canyon Group (TX*)
(†Caddo Creek Formation not used by TX Geol. Survey. Rocks reallocated to Colony Creek Shale and Home Creek Limestone of Canyon Group. See also Colony Creek and Home Creek.)
Subunits:
(alphabetical) --all in TX*: Colony Creek Shale Member, Home Creek Limestone Member.
Geologic age:
Late Pennsylvanian (Virgilian)*
Type section, locality, area and/or origin of name:
Named from Caddo Creek, a tributary of Brazos River in Stephens Co., Brazos River region, TX (Plummer and Moore, 1922).
AAPG geologic province:
Bend arch*
Fort Worth syncline*
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 ([ ]).