Usage:
Bonner Springs Shale of Kansas City Group (IA*,KS*,MO*,NE*)
Bonner Springs Formation of Kansas City Group (MO)
Bonner Springs Shale of /Zarah subgroup [informal] of Kansas City Group (KS)
["Subgroup" not recognized as a formal stratigraphic rank term (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). Zarah subgroup considered informal and should not be capitalized.]
Geologic age:
Late Pennsylvanian (Missourian)*
Type section, locality, area and/or origin of name:
Type locality: cement plant northeast of Bonner Springs, Wyandotte Co., KS (Newell, 1935).
AAPG geologic province:
Forest City basin*
Iowa shelf*
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 ([ ]).