Usage:
Lamotte Formation (IL*,MO*)
Lamotte Sandstone (subsurface of AR*,CO*,IL,KS*,MO*,NE,OK*,TX*)
Lamotte Sandstone (MO*-exposed locally in St. Francois Mountains area)
Spelled La Motte and LaMotte in early reports.
Geologic age:
Middle Cambrian*
Type section, locality, area and/or origin of name:
Named from Mine La Motte Station, Madison Co., southeastern MO (US geologic names lexicons, USGS Bull. 896, 1200).
AAPG geologic province:
Anadarko basin*
Central Kansas uplift*
Chautauqua platform*
Cherokee basin*
Denver basin
Forest City basin*
Illinois basin*
Las Animas arch*
Las Vegas-Raton basin*
Lincoln anticline
Nemaha anticline*
Ozark uplift*
Palo Duro basin*
Salina basin
Sedgwick basin*
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 ([ ]).