Usage:
Conococheague Limestone (MD*,PA*,VA*,WV*)
Conococheague Limestone of Knox Group (TN*)
Conococheague Formation (PA*,VA)
Conococheague Formation of Knox Group (VA*)
Conococheague Group (PA*)
Subunits:
GROUP STATUS: Buffalo Springs Formation (PA*), Millbach Formation (PA*), Richland Formation (PA*), Schaefferstown Formation (PA*), Shady Grove Formation (PA*), Snitz Creek Formation (PA*), Zullinger Formation (PA*).
FORMATION STATUS: Big Spring Station Member (MD,PA,WV,VA), Millbach Member (PA), Richland Member (PA), Snitz Creek Member (PA).
Geologic age:
Cambrian, Late*
Ordovician, Early*
Type section, locality, area and/or origin of name:
[Type section]: along banks of Conococheague Creek in town of Scotland, [Scotland 7.5-min quadrangle], Franklin Co., central southern PA (Stose, 1908, 1909).
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 ([ ]).