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Map showing publication footprint
  • Usage in publication:
    • Atascosa group
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Limestone
    • Shale
    • Dolomite
    • Marl
  • AAPG geologic province:
    • Gulf Coast basin
Publication:

Winter, J.A., 1961, Stratigraphy of the Lower Cretaceous (subsurface) of south Texas: Gulf Coast Association of Geological Societies Transactions, v. 11, p. 15-24., See also Fredericksburg and Washita strata (subsurface Lower Cretaceous), southwest Texas, IN Stapp, W.L., ed., Contributions to the geology of south Texas, South Texas Geol. Soc., p. 81-115, 1962


Summary:

Pg. 15, 21; 1962, IN Contributions to the geology of south Texas: San Antonio, South Texas Geol. Soc., p. 86, 92. Atascosa group. Defined as consisting of formations above the Pearsall and below the Del Rio formation, that is, Georgetown, McKnight (new), Edwards, Glen Rose, and Stuart City (new) formations and the fine-grained limestone sequence (Atascosa group undifferentiated) of the fore-reef province. Age is Early Cretaceous.
Report 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.

Source: US geologic names lexicon (USGS Bull. 1350, p. 35).


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 ([ ]).

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