Basal Heath or Caleto Mero Shales, Quebrada Seca-Bravo (Oligocene of Peru)

Where: Piura, Peru (4.1° S, 81.1° W: paleocoordinates 7.2° S, 100.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• basal Heath, or Caleto Mero shales

•base of late Oligocene

•Pleurophopsis zone

• bed-level stratigraphic resolution

Environment/lithology: shoreface; lithified, concretionary shale

• species belong to a small fauna of shallow water affinity that followed near the advancing shore line of the early Heath Sea
• narrow transitional zone between Heath Fm shales and Punta Bravo Grits

•shale contains large concretions

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 64566: authorized by Linda Ivany, entered by Linda Ivany on 10.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Cardiida - Vesicomyidae
Pleurophopsis peruviana n. sp. Olsson 1931 clam
Pleurophopsis lithophagoides n. sp. Olsson 1931 clam
 Lucinida - Lucinidae
"? Myrtaea cooki n. sp." = Myrtea
"? Myrtaea cooki n. sp." = Myrtea clam