Sheldon Limestone Member of Topeka Formation of Shawnee Group (IA*,MO*,NE*)
Sheldon Limestone Member of Topeka Limestone of Shawnee Group (KS*)
Late Pennsylvanian (Virgilian)*
Named from outcrops in Sheldon quarry, just east of Nehawka, [Cass Co.], southeastern NE (Moore, 1936).
Forest City basin*
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 ([ ]).