No current usage.
(†Lafayette Formation (AL,AR,DE,FL,GA,LA,MD,MS,MO,NJ,NC,PA,SC,TX,VA) or †Lafayette Gravel (AR,IL,IN,MO,TN) abandoned.)
Cenozoic
Named from typical exposures in Lafayette Co., MS (Hilgard, 1891).
Atlantic Coast basin
Florida platform
Gulf Coast basin
Illinois basin
Mid-Gulf Coast basin
Ozark uplift
Piedmont-Blue Ridge province
South Georgia sedimentary province
Upper Mississippi embayment
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 ([ ]).