Usage:
Knobtown Limestone Member of Shale Hill Formation of Pleasanton Group (KS?,MO)
Knobtown sandstone (informal, unranked) in Tacket Formation of Pleasanton Group (KS)
Knobtown facies (informal) in Pleasanton Group (MO)
For informal usage, the rank or lithologic term should not be capitalized.
Geologic age:
Late Pennsylvanian (Missourian)
Type section, locality, area and/or origin of name:
A subsurface sand near top of Pleasanton formation (Pennsylvanian) of west-central MO. Lies higher than Wayside sand. Named from outcrop north of Knobtown, Jackson Co., on U.S. Highway 50, in sec. 22, T. 48 N., R. 32 W. (See Missouri Bur. Geol. and Mines 57th Bien. Rpt., 1933, p. 13, 19, App. 2, pl. 2).
AAPG geologic province:
Forest City 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 ([ ]).