Usage:
Richland Formation of Conococheague Group (PA*)
Richland Member of Conococheague Formation (PA)
Geologic age:
Late Cambrian*
Type section, locality, area and/or origin of name:
Along Reading RR, about 0.25 mile east of Richland and along road immediately west of Sheridan, Lebanon Co., PA (Gray and others, 1958).
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 ([ ]).