Usage:
Dawson Bay Formation (MT*,ND*,SD*)
Geologic age:
late Middle Devonian (Givetian)*
Type section, locality, area and/or origin of name: (See Canadian Lexicon)
Type area: Dawson Bay, north end of Lake Winnipegosis, Manitoba, Canada (Baillie, 1953).
Composite section measured in T. 44 and 45 N., R. 25 W. (Baillie, 1953).
AAPG geologic province:
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 ([ ]).