Usage:
Ontelaunee Formation of Beekmantown Group (NJ*,PA*)
Ontelaunee Formation (NJ)
Subunits:
Beaver Run and Harmonyvale Members (NJ)
Geologic age:
Early to Middle Ordovician*
Type section, locality, area and/or origin of name:
Type section: along east bank of Schuykill River 1 mi southeast of Leesport, Berks Co., southeastern PA (Hobson, 1957).
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 ([ ]).