Flossie Lake subinterval (informal) of Bottineau interval (informal) in Madison Formation. Extended into North Dakota from adjacent parts of Manitoba where it was previously defined as a member of the Lodgepole Formation [M.S. Stanton, 1956, Strat. of Lodgepole Formation, Virden-Whitewater area, Manitoba: Jour. Alberta Soc. Petrol. Geol., v. 4, no. 7, p. 164-167]. Overlies Whitewater Lake subinterval (informal) of Bottineau interval; underlies Tilston interval (informal) in Madison Formation. Age is Mississippian. Boundaries and mechanical-log or lithologic characteristics not shown or described.
[Name credited to H.R. McCabe, 1963, Mississippian oil field of southwestern Manitoba: Manitoba Dept. Mines, Res. Env. Mngmt. Mines Branch Pub., no. 60-5, 50 p.]
Source: Modified from GNU records (USGS DDS-6; Denver GNULEX).
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