Dawson Bay Formation

Geology

Group: Manitoba

Members: A (Mafeking) (1), Atrypa bremerensis (3), Atrypa bremerensis zone (2), Atrypa snakensis (1), B (1), C (1), D (2), Schizophoria iowensis (1), Schizophoria iowensis Zone (4), Spinatrypa zone (1)

Lithologies: not reported (3), "siliciclastic" (1), "shale" (2), packstone (1), "limestone" (9), dolomite (1), "carbonate" (1)

Paleoenvironments: marine indet. (8), carbonate indet. (9)

Age range: Middle Givetian or 385.90000 to 383.40000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Givetian387.95 - 382.31Canada (Manitoba) (6721 6722 6724 6725 6718 6719 6720 6723 56461 94129 94130 94131 94132 106309 106310 106311)
Middle Givetian385.9 - 383.4Canada (Manitoba) (3636)