Brownsport Formation (MS,TN*)
Brownsport Group (TN)
(ascending) Beech River Member (TN*)/Formation (TN), Bob Limestone Member (TN*)/Formation (TN), and Lobelville Member (TN*)/Formation (TN)
late Silurian*
Vicinity of Brownsport Furnace, Perryville quadrangle, Decatur Co., TN (Foerste, 1903).
Cincinnati arch*
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 ([ ]).