Gateway to the Paleobiology Database
CTA-32 (Oligocene of Peru)

Also known as Contamana; CTA 32

Where: Loreto, Peru (7.3° S, 74.9° W: paleocoordinates 8.9° S, 69.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: base Member (Chambira Formation), Late/Upper Oligocene (28.4 - 23.0 Ma)

• 30 m above the base of the Chambira Formation

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; blue claystone and pebbly conglomerate

• bluish lacustrine clays topping a conglomerate with centimetric pebbles of fluvial origin

Size class: mesofossils

Primary reference: P. Antoine, M. A. Abello, S. Adnet, A. J. Altamirano Sierra, P. Baby, G. Billet, M. Boivin, Y. Calderón, A. Candela, J. Chabain, F. Corfu, D. A. Croft, M. Ganerřd, C. Jaramillo, S. Klaus, L. Marivaux, R. E. Navarrete, M. J. Orliac, F. Parra, M. E. Pérez, F. Pujos, J. Rage, and A. R. 2016. A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru. Gondwana Research 31:30-59 [J. Zijlstra/J. Zijlstra/P. Mannion] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 176130: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 29.01.2016, edited by Philip Mannion

Creative Commons license: CC BY (attribution)