Usage:
Fontana Shale Member of Cherryvale Shale of Kansas City Group (KS*)
Fontana Shale Member of Cherryvale Formation of Kansas City Group (IA*,MO*,NE*)
Fontana Shale Member of Cherryvale Shale of /Linn subgroup [informal] of Kansas City Group (KS)
Fontana Shale Member of Cherryvale Formation of /Linn subgroup [informal] of Kansas City Group (MO)
["Subgroup" not recognized as a formal stratigraphic rank term (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). Linn subgroup considered informal and should not be capitalized.]
Geologic age:
Late Pennsylvanian (Missourian)*
Type section, locality, area and/or origin of name:
Near Fontana, in roadcuts at northeast corner sec. 11, T. 18 S., R. 23 E., and at middle of west side of NW/4 sec. 36, T. 18 S., R. 23 E., Miami Co., eastern KS. Named from Fontana (Newell, 1935).
AAPG geologic province:
Forest City basin*
Iowa shelf*
Nemaha anticline*
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 ([ ]).