Usage:
Fernvale Formation (AL*,MO*,TN*)
Fernvale Limestone (AL*,AR*,IL*,MO*,OK*,TN*)
Fernvale Limestone Member of Sequatchie Formation (AL)
Fernvale Member of Shellmound Formation (GA,TN)
Geologic age:
Late Ordovician (Cincinnatian;
Edenian to Maysvillian)*
Type section, locality, area and/or origin of name:
Type area: Fernvale, Williamson Co., TN (Hayes and Ulrich, 1903).
AAPG geologic province:
Cincinnati arch*
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 ([ ]).