Where: Chubut, Argentina (45.3° S, 67.0° W: paleocoordinates 47.9° S, 56.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Riochican mammal zone, Koluel Kaike Formation (Río Chico Group), Riochican (57.0 - 55.8 Ma)

• Unit 'm', 117-118 metres above the top of the "Banco Negro Inferior."

•Ernestokokenia Faunal Zone of Simpson (1935), Riochican SALMA, Koluel Kaike Formation, early Eocene (see Woodburne et al. 2014)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; gray sandstone

Size classes: macrofossils, mesofossils

Primary reference: G. G. Simpson. 1935. Occurrence and relationships of the Rio Chico fauna of Patagonia. American Museum Novitates 818:1-21 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 175728: authorized by Richard Butler, entered by Richard Butler on 06.01.2016, edited by Evangelos Vlachos

Creative Commons license: CC BY (attribution)