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2 km NE of La Esquina (Triassic of Argentina)

Also known as Palaeochersis

Where: La Rioja, Argentina (29.9° S, 68.1° W: paleocoordinates 39.0° S, 31.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Coloradian other zone, Los Colorados Formation (Agua de la Peņa Group), Norian (221.5 - 205.6 Ma)

• "upper levels" of the formation, 30 metres below its top; level that yields turtles is referred to as "NF2" and is 90 metres above "NF1", which yields mostly archosaurs; formation is considered to be latest Triassic in age

• bed-level stratigraphic resolution

Environment/lithology: "floodplain"; gypsiferous, red siltstone

Size class: macrofossils

Collected in 1992

Collection methods: quarrying, surface (in situ),

• PULR: Universidad Nacional de La Rioja

Primary reference: G. W. Rougier, M. S. de la Fuente, and A. B. Arcucci. 1995. Late Triassic turtles from South America. Science 268:855-858 [R. Butler/R. Butler] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105693: authorized by Richard Butler, entered by Richard Butler on 23.02.2011

Creative Commons license: CC BY (attribution)