Souris Valley beds (Canada-subsurface)
Same as Bottineau interval (informal) in Lodgepole Formation of Madison Group (ND). See also Bottineau.
Informal. The rank or lithologic term should not be capitalized.
Early Mississippian (Kinderhookian)
Named from Souris Valley Oil Company, Gordon White No. 1 well, Manitoba, Canada (Saskatchewan Geological Society, 1956).
Williston 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 ([ ]).