La Mesa Formation

Geology

Members: Lower (3), Middle (1), Upper (3)

Lithologies: "shale" (3), sandstone (6), marl (3), "limestone" (1)

Paleoenvironments: offshore shelf (4), offshore (3)

Age range: Campanian or 83.60000 to 72.20000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Campanian83.6 - 72.2Peru (62028 62029 62030 62032)
Late/Upper Campanian83.6 - 72.2Peru (62033 62034 62035)