Punta Bravo Grits - Trigal, Boca Pan Valley (Oligocene of Peru)

Where: Piura, Peru (5.2° S, 80.6° W: paleocoordinates 7.5° S, 74.3° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Mancora Formation, Early/Lower Oligocene (33.9 - 28.4 Ma)

• top of unit is more marine (below is mostly non-marine)

•basal Oligocene according to Higley 2004

Environment/lithology: marine; coarse-grained, white sandstone and coarse-grained conglomerate

• no specific description given for this site, but should be similar to Punto Bravo grits elsewhere

Primary reference: A. A. Olsson. 1931. Contributions to the Tertiary Paleontology of Northern Peru: Part 4, The Peruvian Oligocene. Bulletins of American Paleontology 17(63) [L. Ivany/L. Ivany]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55439: authorized by Linda Ivany, entered by Linda Ivany on 23.10.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Cardiida - Dreissenidae
Mytilopsis trigalensis n. sp.
Mytilopsis trigalensis n. sp. Olsson 1931 clam
 Cardiida - Corbiculidae
Cyrena (Polymesoda) trigalensis n. sp.
Cyrena (Polymesoda) trigalensis n. sp. Olsson 1931 clam
Gastropoda
 Mesogastropoda - Melaniidae
Pachychilus indet.