PBDB Collection

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

Show authors, comments, and common names

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

¹Carlini et al. 2009; ²Pérez and Vucetich 2012; ³Reguero and Cerdeño 2005