Usage:
Atascosa Group (TX-subsurface)
Subunits:
(alphabetical) --all in TX subsurface: Edwards Formation, Georgetown Formation, Glen Rose Formation, McKnight Formation, Stuart City Formation.
Geologic age:
Early Cretaceous (Comanchean Provincial Epoch)
Type section, locality, area and/or origin of name:
Type locality not stated. Report (Winter, 1961; 1962) includes four geologic provinces: San Marcos platform, Maverick basin, Stuart City reef trend, and fore-reef province. Atascosa Co., southern TX, is in this area.
AAPG geologic province:
Gulf Coast basin
Ouachita folded belt
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 ([ ]).