Margaret Formation

Geology

Group: Eureka Sound

Members: unnamed (4)

Lithologies: not reported (4), sandstone (3)

Paleoenvironments: terrestrial indet. (3), coastal indet. (3), deltaic indet. (1)

Age range: Wasatchian or 55.80000 to 50.30000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Ypresian56.0 - 47.8USA (California) (52424 52426 52428)
Wasatchian55.8 - 50.3Canada (Northwest Territories) (15583)
Wasatchian55.8 - 50.3Canada (Nunavut) (163833 185212 185213)