Where: Chubut, Argentina (43.2° S, 69.3° W: paleocoordinates 40.7° S, 30.2° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Cañadón Calcáreo Formation (Sierra de Olte Group), Late/Upper Oxfordian to Late/Upper Oxfordian (161.2 - 145.0 Ma)

• originally listed as Cañadón Asfalto Fm.; "at the base of the Cañadón Calcáreo Formation, some 15–20 m above the discordant contact with the volcanic and volcanoclastic rocks of the Lonco Trapial Formation"

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; silty sandstone and mudstone

Size classes: macrofossils, mesofossils, microfossils

Preservation: adpression, soft parts

Collected by A. Benitez, P. Puerta, R. Vacca, O. Giménez in 1980–1995

Collection methods: quarrying, surface (in situ), mechanical,

Primary reference: T. H. Rich, O. Giménez, R. Cúneo, P. F. Puerta, R. Vacca and P. A. Vickers-Rich. 1997. Primer registro de un camarasáurido primitivo en el Gondwana patagónico [First record of a primitive camarasaurid in Patagonian Gondwana]. Ameghiniana 34(4):540 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 51938: authorized by Matthew Carrano, entered by Matthew Carrano on 06.07.2005

Creative Commons license: CC BY (attribution)