Kootenai Formation

Geology

Members: unnamed (25)

Lithologies: not reported (1), "siliciclastic" (1), "shale" (21), siltstone (1), sandstone (16), coal (1)

Paleoenvironments: terrestrial indet. (4), mire/swamp (1), lacustrine indet. (20)

Age range: Late/Upper Aptian or 119.57000 to 113.20000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Cretaceous143.1 - 66.0USA (Montana) (32518)
Aptian121.4 - 113.2USA (Montana) (35546 35547 152619)
Aptian - Albian121.4 - 100.5USA (Montana) (85072 142754 276644)
Late/Upper Aptian119.57 - 113.2USA (Montana) (21126 21130 21133 21136 21138 21139 21140 21151 21152 21153 21154 21155 21158 21159 21160 21161 21162 21164)