Negritos Formation

Geology

Members: unnamed (12)

Lithologies: not reported (3), "shale" (3), sandstone (7)

Paleoenvironments: marine indet. (9), shallow subtidal indet. (1), coastal indet. (2)

Age range: base of the Early/Lower Eocene to the top of the Middle Eocene or 55.80000 to 37.71000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Early/Lower Eocene55.8 - 48.6Peru (93745 93746 93756 93759 93764 93765 93767)
Early/Lower Eocene55.8 - 48.6Peru (Talara) (165441)
Early/Lower Eocene55.8 - 48.6Peru (Piura) (86944 88360 88393)
Middle Eocene47.8 - 37.71Peru (169277)