Laguna de los Machos ( of Argentina)

Where: Chubut, Argentina (44.3° S, 69.0° W: paleocoordinates 45.5° S, 61.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Deseadan (29.0 - 21.0 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Primary reference: B. Patterson and R. Pascual. 1968. New echimyid rodents from the Oligocene of Patagonia, and a synopsis of the family. Breviora 301:1-14 [J. Zijlstra/J. Zijlstra]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176465: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 13.02.2016, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Notoungulata - Hegetotheriidae
Prohegetotherium sculptum3 Ameghino 1897 notoungulate
MLP 59-II-26-36
Propachyrucos sp. Ameghino 1897 notoungulate
 Notoungulata - Interatheriidae
"Plagiarthrus sp." = Argyrohyrax
"Plagiarthrus sp." = Argyrohyrax Ameghino 1897 notoungulate
 Notoungulata - Mesotheriidae
Trachytheriinae indet. Ameghino 1889 notoungulate
 Notoungulata - Archaeohyracidae
Archaeohyrax sp. Ameghino 1897 notoungulate
 Cingulata - Dasypodidae
Parutaetus chilensis1 Carlini et al. 2009 armadillo
Meteutatus aff. lagenaformis1 Ameghino 1897 armadillo
"Sadypus sp." = Meteutatus1 Ameghino 1902 armadillo
Archaeutatus "sp. nov."1 Ameghino 1902 armadillo
 Rodentia -
Asteromys punctus2 Ameghino 1897 caviomorph
Xylechimys obliquus n. gen. n. sp. Patterson and Pascual 1968 caviomorph
MLP 59-II-26-81, dentary with m1-3