Usage:
Nishnabotna Member of Dakota Formation (IA,MN?,NE?,SD?)
Spelled Nishnabotany in early reports.
Geologic age:
Cretaceous
Type section, locality, area and/or origin of name:
Not designated. Named from exposures on the East Nishnabotany River Valley, in Page, Montgomery, Pottawatomie, and Cass Cos., IA (White, 1870).
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 ([ ]).