Usage:
Esopus Formation (NY*,PA*)
Esopus Formation of Stone Ridge Group (NJ,NY)
Esopus Shale (NJ*,NY*,PA*)
Esopus Shale of Tristates Group (NY)
Esopus Siltstone (NJ*,NY*)
Subunits:
Highland Mills, Mountainville, Quarry Hill, Woodbury Creek Members (NJ,NY)
Geologic age:
Early Devonian*
Type section, locality, area and/or origin of name:
Esopus and Esopus Creek, Ulster Co., NY (Darton, 1894).
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 ([ ]).