Where: Argentina (48.9° S, 71.9° W: paleocoordinates 50.7° S, 39.0° W)

• outcrop-level geographic resolution

When: Piedra Clavada Formation, Late/Upper Aptian (122.5 - 113.0 Ma)

• STRATIGRAPHIC RELATIONS: Piedra Clavada Fm, overlying Rio Mayer Fm (Late Aptian). AGE: Late Aptian on presence of P. russoi. STRATIGRAPHIC POSITION: 10 m thick siltstone of Piedra Clavada Fm, immediately above PBDB# 64154.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, yellow, sandy siltstone

Size class: macrofossils

Preservation: concretion

Reposited in the MLP

• COLLECTOR: Unknown collector. No previous collections reported. REPOSITORY: MLP (Museo de la Plata, Argentina).

Primary reference: F. A. Medina and A.C. Riccardi. 2005. Desmoceratidae, Silesitidae and Kossmaticeratidae (Ammonitida) from the Upper Aptian-Albian of Patagonia (Argentina). Revue de Paleobiologie, Geneve 24(1):251-286 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64156: authorized by Austin Hendy, entered by Austin Hendy on 01.09.2006

Creative Commons license: CC BY (attribution)