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National Geologic Map Database

Geologic Unit: Little Tongue

Usage:

Little Tongue Member of Madison Limestone (MT*?,WY*)


Geologic age:

Middle Mississippian (Visean; late Osagean)*


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

Type section: Little Tongue River section, [in NE/4 sec. 27, T. 57 N., R. 87 W., Sheridan Co., WY]. Named from exposures in Little Tongue River, in NW/4 sec. 26, T. 56 N., R. 87 W., Sheridan Co., WY (Sando, 1982).


AAPG geologic province:

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