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National Geologic Map Database

Geologic Unit: Tecumseh

Usage:

Tecumseh Shale of Shawnee Group (IA*,KS*,MO*,NE*)
Tecumseh Formation of Shawnee Group (MO)


Subunits:

(alphabetical) --all in NE: Kenosha Member, Ost Limestone Member, Rakes Creek Member.


Geologic age:

Late Pennsylvanian (Virgilian)*


Type section, locality, area and/or origin of name:

Not synopsized to date.


AAPG geologic province:

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 ([ ]).