Usage:
Preachersville Member of Drakes Formation (KY*,OH*)
Subunits:
Otter Creek Coral Bed (KY*).
Geologic age:
Late Ordovician (Cincinnatian; Richmondian)*
Type section, locality, area and/or origin of name:
Type section: in gully and roadcuts along KY Highway 39, beginning 2 mi southeast of Preachersville, Lancaster quadrangle, Lincoln Co., KY (Weir and others, 1965).
AAPG geologic province:
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 ([ ]).