Where: Peru (3.6° S, 80.5° W: paleocoordinates 5.4° S, 75.1° W)

• coordinate based on political unit

When: Late/Upper Oligocene (28.4 - 23.0 Ma)

• These fossils are from the Mancora and Punta Bravo beds in Peru and the Posorja and Zapotal beds of Ecuador. Faunal correlations strongly suggest an Oligocene age or younger, although elements of Eocene character are present as well. AGE: Reassigned to Oligocene by A. Hendy (4/2008) based on faunal composition.

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collection methods: The collection is based on work with the International Ecuadorean Petroleum Company.

Primary reference: J. W. Durham, A.N. Dusenbury, Jr, H.D. Hedberg, L. Kehrer, J.G. Marks, R.M. Stainforth, and B. Stone. 1949. The age of the Hannatoma mollusk fauna of South America; a symposium. Journal of Paleontology 23(2):145-160 [L. Ivany/C. Visaggi/C. Visaggi]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 42794: authorized by Linda Ivany, entered by Christy Visaggi on 05.08.2004

Creative Commons license: CC BY (attribution)