Letrero Formation

Geology

Members: unnamed (3)

Lithologies: not reported (1), siltstone (2), sandstone (2)

Paleoenvironments: lacustrine deltaic indet. (1), lacustrine indet. (2)

Age range: Tortonian or 11.63000 to 7.24600 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Tortonian11.63 - 7.246Ecuador (Azuay) (166501 230909 230910)