Where: Argentina (42.1° S, 63.8° W: paleocoordinates 42.2° S, 61.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Puerto Madryn Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• STRATIGRAPHIC RELATIONS: From the Puerto Madryn Fm, which unconformably overlies the Gaiman Fm (Early Miocene). THICKNESS: From a 2 m thick bed within 22 m thick section. Formation reaches a maximum thickness of 150 m. AGE: Middle Miocene according to del Rio (1992) on the basis of generic affinities with Middle Miocene Caribbean faunas. Regarded as Late Miocene by del Rio (2004). STRATIGRAPHIC POSITION: From very base of section.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, fine-grained, shelly/skeletal, gray, yellow sandstone

Size class: macrofossils

Collection methods: COLLECTOR: C. J. del Rio (between 1982 and 1987). REPORSITORY: CPBA; Universidad de Buenos Aires. Ciudad Universitaria, Pabellon II, Buenos Aires, Argentina.

Primary reference: C. J. del Rio. 1992. Middle Miocene bivalves of the Puerto Madryn Formation, Valdes Peninsule, Chubut Province, Argentina (Nuculidae-Pectinidae): Part 1. Palaeontographica Abteilung A 225:1-58 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 71571: authorized by Austin Hendy, entered by Austin Hendy on 29.04.2007

Creative Commons license: CC BY (attribution)