DV 804-1 [Otuma Fm] (Oligocene of Peru)

Where: Peru (15.0° S, 75.0° W: paleocoordinates 17.1° S, 68.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

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

• Nearshore marine and tuufaceous non-marine sequence overlying crystalline basement rocks

• bed-level stratigraphic resolution

Environment/lithology: coastal; sandstone and tuffaceous sandstone

• Sandstone

Size class: macrofossils

Preservation: original aragonite, original calcite

Collection methods: quarrying,

• Identifications made by T.J. DeVires. Unknown repository.

Primary reference: T. J. DeViries. 1998. Oligocene deposition and Cenozoic sequence boundaries in the Pisco Basin (Peru). Journal of South American Earth Sciences 11(3):217-231 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 41620: authorized by Austin Hendy, entered by Austin Hendy on 18.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Probably not complete for locality. Only common and biostratigraphically important taxa listed.
Bivalvia
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Mytilida - Mytilidae
Perna sp. Retzius 1788 mussel
Gastropoda
 Neogastropoda - Pseudolividae
Testallium cepa Sowerby 1846 snail
 Sorbeoconcha - Turritellidae
Turritella woodsi Lisson 1925 turret shell