Usage:
Livingston Group (MT*)
Livingston Formation (MT*)
Subunits:
GROUP STATUS (alphabetical) --all in MT*: Billman Creek Formation, Cokedale Formation, Hoppers Formation, Maudlow Formation, Miner Creek Formation, Sedan Formation.
Geologic age:
Late Cretaceous (Santonian to Maastrichtian)*
Type section, locality, area and/or origin of name:
Named from exposures at base of mountains, south of Yellowstone River near Livingston, Park Co., MT (Weed, 1893).
AAPG geologic province:
Central Montana uplift*
Montana folded belt*
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 ([ ]).