Usage:
Zama Member of Zilpha Shale of Claiborne Group (MS)
Geologic age:
early Tertiary (middle Eocene)
Type section, locality, area and/or origin of name:
Type section: exposures in cuts of State Highway 19 at top of hill, in SE/4 NW/4 sec. 22, T. 13 N., R. 9 E., about 1 mi southeast of intersection of the road west of Zama, Attala Co., central MS (Parks and others, 1963).
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 ([ ]).