Usage:
Zilpha Shale of Claiborne Group (MS)
Zilpha Clay of Claiborne Group (MS*)
Subunits:
Zama Member (MS).
Geologic age:
early Tertiary (middle Eocene)*
Type section, locality, area and/or origin of name:
Type locality: along county road at Bucksnort Hill, 1.5 mi north of Zilpha Creek and near center sec. 8, T. 16 N., R. 6 E., northwestern Attala Co., western MS (Thomas, 1942).
AAPG geologic province:
Mid-Gulf Coast 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 ([ ]).