Blackleaf Formation

Geology

Group: Colorado

Members: unnamed (2), Flood (1), Vaughn (2)

Lithologies: mudstone (1), "shale" (2), siltstone (1), sandstone (1)

Paleoenvironments: wet floodplain (2), "floodplain" (1), fluvial-lacustrine indet. (1), fluvial-deltaic indet. (1)

Age range: Late/Upper Albian or 106.30000 to 100.50000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Late/Upper Albian106.3 - 100.5USA (Montana) (29138 31080 31171 73373 137590)