Yaquina Formation

Geology

Members: unnamed (6), upper (1)

Lithologies: not reported (3), siltstone (2), sandstone (3)

Paleoenvironments: marine indet. (6), deltaic indet. (1)

Age range: Chattian or 28.10000 to 23.03000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Late/Upper Oligocene28.4 - 23.03USA (Oregon) (91211)
Chattian28.1 - 23.03USA (Oregon) (45782 45788 58892 180442 201628 202148)