Calliham Sandstone Member of Whitsett Formation of Jackson Group (TX*)
early Tertiary (late Eocene)*
Type locality: about 0.6 mi north-northeast of village of Calliham where old Whitsett-Calliham Road crosses Frio River. Named from village of Calliham, which is near Frio River in McMullen Co. about 1 mi west of Live Oak Co. line on Farm Road 63 from Three Rivers to Tilden, southern TX (Ellisor, 1933; Eargle, 1959).
Gulf Coast 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 ([ ]).