Usage:
Beechwood Member of North Vernon Limestone (IN*)
Beechwood Limestone Member of Sellersburg Limestone (IN*,KY*)
Beechwood Formation (IN)
(†Sellersburg Limestone not used by the IN Geol. Survey. Replaced with North Vernon Limestone.)
Geologic age:
late Middle Devonian (Givetian)*
Type section, locality, area and/or origin of name:
Named from Beechwood Station, Jefferson Co., KY. Exposed in stream a few rods [1 rod = 16.5 ft] north of the Shelbyville Turnpike, 0.5 mi south of Beechwood Station on the Louisville and Nashville RR, and 1.5 mi east of St. Mathews, [Prospect 15-min quadrangle], Jefferson Co., KY (Butts, 1915).
AAPG geologic province:
Cincinnati arch*
Illinois basin*
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 ([ ]).