Usage:
Theresa Formation (NY*,PA*,VT*)
Theresa Formation of Saratoga Springs Group (NY)
Geologic age:
Cambrian, Late*
Ordovician, Early
Type section, locality, area and/or origin of name:
Type area: Theresa Twp., Jefferson Co., NY (Cushing, 1908).
AAPG geologic province:
Appalachian basin*
New England province*
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 ([ ]).