Palo Pinto Formation of Canyon Group (TX)
Palo Pinto Formation of Strawn Group (TX)
Palo Pinto Limestone of [†?]Whitt Group (TX)
(alphabetical) --all in TX: Balsora Limestone [unranked], Boone Creek Member, Hudson Bridge [Bed], Martin Lake Limestone [Bed], Oran Sandstone Member, Posideon Shale Member, Sanders Bridge Limestone [Bed], Wiles Limestone Member, Wynn Limestone Member.
Late Pennsylvanian (Missourian)
Not designated. Origin of name not stated by author (Plummer, 1919).
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 ([ ]).