Member
Geology
Group: Beaver Bay
Formation: Tolstoi
Lithologies: siltstone (2), sandstone (2)
Paleoenvironments: marine indet. (2)
Age range: Middle Eocene or 48.07000 to 37.71000 Ma
Collections
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Eocene | USA (Alaska) | (44096 44097) |