Usage:
Hills Gulch Bed of Jaycox Member of Ludlowville Formation (NY)
Geologic age:
Middle Devonian
Type section, locality, area and/or origin of name:
Exposures on Hill's Gulch ravine, 360 m south of junction of U.S. Route 20 and the former Delaware, Lackawanna, and Western RR, Le Roy quadrangle, Genesee Co., western NY (Kloc, 1983).
AAPG geologic province:
Appalachian 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 ([ ]).