Lee Branch member (informal) of Lenoir Limestone (AL)
Informal. The rank or lithologic term should not be capitalized.
Middle Ordovician (Whiterockian)
Lake Purdy, Shelby Co., AL (Roberson, 1988).
Appalachian 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 ([ ]).