Kootenai Formation

Geology

Members: unnamed (24)

Lithologies: not reported (1), "siliciclastic" (1), "shale" (20), siltstone (1), sandstone (16), coal (1)

Paleoenvironments: terrestrial indet. (3), mire/swamp (1), lacustrine indet. (20)

Age range: Late/Upper Aptian or 122.46000 to 113.00000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Cretaceous145.0 - 66.0USA (Montana) (32518)
Aptian125.0 - 113.0USA (Montana) (35546 35547 152619)
Aptian - Albian125.0 - 100.5USA (Montana) (85072 142754)
Late/Upper Aptian122.46 - 113.0USA (Montana) (21153 21126 21130 21133 21136 21138 21139 21140 21151 21152 21154 21155 21158 21159 21160 21161 21162 21164)