Usage:
Conestoga Formation (PA)
Conestoga Limestone (PA*)
Subunits:
West York, Kreutz Creek, and Wrightsville members (of Gohn, 1976, Ph.D. dissertation).
Geologic age:
Cambrian, Middle(?)*
Cambrian, Late*
Ordovician, Early(?)*
Type section, locality, area and/or origin of name:
Outcrops along Conestoga Creek, south of Lancaster, Lancaster Co., PA (Knopf and Jonas, 1923).
AAPG geologic province:
Piedmont-Blue Ridge 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 ([ ]).