Cerro Guacho (Eocene of Argentina)

Where: Chubut, Argentina (45.0° S, 67.7° W: paleocoordinates 47.3° S, 58.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Barrancan mammal zone, Sarmiento Formation, Bartonian (41.3 - 38.0 Ma)

• Barrancan SALMA, Middle Eocene (Woodburne et al. 2014).

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Collected in 1959; reposited in the MLP

Primary reference: B. Vera. 2012. Revisión del género Transpithecus Ameghino, 1901 (Notoungulata, Interatheriidae) del Eoceno medio de Patagonia, Argentina. Ameghiniana 49(1):60-74 [J. Zijlstra/J. Zijlstra/J. Zijlstra]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176492: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 14.02.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Polydolopimorphia - Polydolopidae
Polydolops thomasi1
Polydolops thomasi1 Ameghino 1897 metatherian
MLP 59-II-24-659, 59-II-24-660
 Notoungulata - Notopithecidae
Notopithecus sp.2, Transpithecus obtentus
Notopithecus sp.2 Ameghino 1897 notoungulate
Transpithecus obtentus Ameghino 1901 notoungulate
MLP 59-II-24-206, M3; MLP 59-II-24-207, M2
1Marshall 1982; 2Reguero and Prevosti 2010