Usage:
Bell sand (informal, unranked) in Minnelusa Formation (WY-subsurface)
Bell sandstone (informal, unranked) in Minnelusa Formation (subsurface of SD,WY)
Informal and unranked. The lithologic term should not be capitalized.
Geologic age:
Early Pennsylvanian (Morrowan)
Type section, locality, area and/or origin of name:
Type locality not designated. Present in subsurface. Presumably named from Continental Oil Company, Tom Bell Cattle Company No. 10 well, in SW/4 NW/4 sec. 34, T. 36 N., R. 65 W., Niobrara Co., WY (Hunt, 1938).
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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).