Usage:
Perryville Limestone Member of Lexington Limestone (KY*)
Perryville Member of Lexington Limestone (KY*)
Subunits:
(alphabetical) --all in KY*: Cornishville Bed, Faulconer Bed, Salvisa Bed.
Geologic age:
Middle Ordovician (Shermanian)*
Type section, locality, area and/or origin of name:
Type area not designated. Occurs in vicinity of Perryville, Boyle Co., KY.
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 ([ ]).