Ramseyburg Member of Martinsburg Formation (NJ*,NY*,PA*)
Late Ordovician (Cincinnatian; Edenian to Maysvillian)*
Named from representative outcrops along U.S. Highway 46 and Erie-Lackawanna RR near Ramseyburg, Portland quadrangle, Warren Co., NJ. Well exposed between Slateford, PA, and Delaware Water Gap and along Bushkill and Little Bushkill Creeks in Northampton Co., PA (Drake and Epstein, 1967).
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 ([ ]).