No current usage.
(†Bingen Sand or †Bingen Formation (AR,LA,OK) replaced with Woodbine Sand and Tokio Formation. See Woodbine and Tokio.)
Late Cretaceous (Gulfian Provincial Epoch)
Named from exposures near Bingen, Hemstead Co., southwestern AR (Hill, 1888).
Arkla 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 ([ ]).