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National Geologic Map Database

Geologic Unit: Dexter

Usage:

Dexter Member of Woodbine Formation (OK*,TX*)


Geologic age:

early Late Cretaceous (Cenomanian)*


Type section, locality, area and/or origin of name:

Named from exposures at Dexter, Cooke Co., northeastern TX (Taff, 1893).
Reference locality: Farm Road 157 south of the bridge across roadcut along the west fork of the Trinity River; [south of West Fork of Trinity River, west of N. Collins Ave. (Farm Road 157) and south of Green Oaks Blvd., in vicinity of Lat. 32 deg. 47 min. N., Long. 97 deg. 05 min. 45 sec. W., Euless 7.5-min quadrangle (ca. 2000 ed.), eastern Tarrant Co., north-central TX] (see Davis and others, 1970).


AAPG geologic province:

Fort Worth syncline*
Ouachita folded belt*
South Oklahoma folded belt*
Strawn basin*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).