Guenguel River (Miocene of Argentina)

Where: Chubut, Argentina (45.6° S, 70.5° W: paleocoordinates 46.2° S, 65.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Rio Frias Formation, Friasian (16.3 - 15.5 Ma)

• Friasian?

•Vera, et al. 2018: Mayoan

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: M. G. Vucetich and M. E. PĂ©rez. 2011. The putative cardiomyines (Rodentia, Cavioidea) of the middle Miocene of Patagonia (Argentina) and the differentiation of the Family Hydrochoeridae. Journal of Vertebrate Paleontology 31(6):1382-1386 [P. Mannion/M. Kouvari]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 204600: authorized by Philip Mannion, entered by Miranta Kouvari on 13.09.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia -
Neoreomys cf. australis2 Ameghino 1887 caviomorph
MLP 15-14a
 Rodentia - Caviidae
Cardiomys ? andinus Kraglievich 1930 caviomorph
see also ref 71564
 Notoungulata - Interatheriidae
Protypotherium sp.1, "? Epipatriarchus bifidens" = Protypotherium australe1
Protypotherium sp.1 Ameghino 1882 notoungulate
identified by Kraglievich 1930 - part of Roth's collection
"? Epipatriarchus bifidens" = Protypotherium australe1 Moreno 1882 notoungulate
MLP12-1420 - Identified by Kraglievich 1930 as ?Ep. bifidens - part of Roth's collection