Alsea Formation

Geology

Members: unnamed (5)

Lithologies: mudstone (1), siltstone (3), sandstone (1)

Paleoenvironments: marine indet. (4), estuary/bay (1)

Age range: Rupelian or 33.90000 to 27.30000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Rupelian33.9 - 27.3USA (Oregon) (45669 84332 135996 193002 199730)