No current usage.
(Rocks of †Otisville Shale (NY) or †Otisville Shale Member of the Shawangunk Formation (NY) reallocated to middle unit of the Shawangunk Formation. See Shawangunk.)
Silurian
Otisville, Orange Co., NY (Swartz and Swartz, 1931).
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 ([ ]).