Usage:
LaSalle Limestone Member of Bond Formation of McLeansboro Group (IL*)
LaSalle Limestone of McLeansboro Group (IL*)
Geologic age:
Late Pennsylvanian (Kasimovian; Stephanian B; Missourian)*
Type section, locality, area and/or origin of name:
Type locality: in sec. 14, T. 33 N., R. 1 E., LaSalle Co., northeastern IL (Cady, 1919; Wanless, 1956).
AAPG geologic province:
Wisconsin 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 ([ ]).