Potsdam Sandstone (NY*,VT)
Potsdam Sandstone of Beekmantown Group (NY)
Potsdam Sandstone of Saratoga Springs Group (NY)
Potsdam Formation (PA)
Potsdam Supergroup (IN-subsurface)
FORMATION STATUS (alphabetical) --all in NY: Ausable Member, Keeseville Member, and Nicholville Member*.
SUPERGROUP STATUS --all in IN: Mount Simon Sandstone, Munising Group.
Named from Potsdam, St. Lawrence Co., NY (Emmons, 1838).
New England province
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.
"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).