Where: Mendoza, Argentina (34.9° S, 68.5° W: paleocoordinates 52.5° S, 35.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Quebrada de Los Fosiles Formation (Puesto Viejo Group), Ladinian to Ladinian (242.0 - 228.0 Ma)

• Initially described as the "middle section of the lower member of the Puesto Viejo Formation" (DeFauw 1993). The "lower Puesto Formation" is now considered the Quebrada de Los Fosiles Formation of Early Triassic age (see Ezcurra et al. 2010). The skull of Vinceria comes from a lower level than other dicynodont specimens from this formation

•

•Stratigraphy comments: The Quebrada de Los Fosiles Formation has been dated as Early Triassic on the basis of biostratigraphy. However, Ottone et al. (2014) provided a SHRIMP U-Pb age for an ignimbrite at the top of the Quebrada de los Fosiles Formation. This date of 235.8 ± 2.0 Ma suggests a Ladinian-Carnian age for the Quebrada de Los Fosiles Formation, in contrast to the biostratigraphic age estimates provided by previous workers.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; gray, green, conglomeratic sandstone

Size class: macrofossils

Collection methods: PVL: Instituto Miguel Lillo (Tucuman)

Primary reference: S. L. DeFauw. 1993. The Pangean dicynodont Rechnisaurus from the Triassic of Argentina. In S. G. Lucas, M. Morales (eds.), The Nonmarine Triassic, New Mexico Museum of Natural History and Science Bulletin 3:101-105 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105243: authorized by Richard Butler, entered by Richard Butler on 18.02.2011

Creative Commons license: CC BY (attribution)