No current usage.
(Rocks of †McMicken Formation (OH), or McMicken Member of Latonia Formation (OH), reallocated to Kope Formation. See Kope.)
Late Ordovician (Cincinnatian; Edenian)
Cincinnati, OH. Named from McMicken Ave. (Bassler, 1906).
Cincinnati arch
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 ([ ]).