Los Toldos Norte, Pinturas Fm., Lago Buenos Aires, Santa Cruz (Miocene of Argentina)

Where: Santa Cruz, Argentina (47.0° S, 70.6° W: paleocoordinates 47.7° S, 64.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pinturan zone, Pinturas Formation, Burdigalian (20.4 - 16.0 Ma)

• Pertains to "Middle Sequence" = "Pinturan" of Kramarz & Bellosi 2005

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Reposited in the MACN

Primary reference: T. M. Bown and C. N. Larriestra. 1990. Sedimentary paleoenvironments of fossil platyrrhine localities, Miocene Pinturas Formation, Santa Cruz Province, Argentina. Journal of Human Evolution 19(1-2):87-119 [D. Croft/D. Croft]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 59322: authorized by Darin Croft, entered by Darin Croft on 26.03.2006, edited by Juan Carrillo

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Panameriungulata - Proterotheriidae
Tetramerorhinus fleaglei5, Tetramerorhinus prosistens5
Tetramerorhinus fleaglei5 Kramarz and Bond 2005 placental
6 specimens
Tetramerorhinus prosistens5 Ameghino 1899 placental
1 specimen
 Rodentia - Echimyidae
Prostichomys bowni2
Prostichomys bowni2 Kramarz 2001 spiny rat
22 specimens
 Rodentia - Acaremyidae
Galileomys eurygnathus2
Galileomys eurygnathus2 Kramarz 2004 caviomorph
4 specimens
 Rodentia - Chinchillidae
Chinchillidae indet.1, Prolagostomus sp.1
Chinchillidae indet.1 Bennett 1833 chinchilid
1 specimen
Prolagostomus sp.1 Ameghino 1887 chinchilid
1 specimen
 Rodentia -
Eosteiromys annectens2, Steiromys principalis2, Steiromys duplicatus2
Eosteiromys annectens2 Ameghino 1901 caviomorph
2 specimens
Steiromys principalis2 Ameghino 1901 caviomorph
1 specimen
Steiromys duplicatus2 Ameghino 1887 caviomorph
1 specimen
 Rodentia - Erethizontidae
Branisamyopsis praesigmoides2
Branisamyopsis praesigmoides2 Kramarz 2004 porcupine
5 specimens
 Rodentia - Dinomyidae
Scleromys quadrangulatus4
Scleromys quadrangulatus4 Kramarz 2006 caviomorph
2 specimens
 Rodentia - Neoepiblemidae
Perimys intermedius1
Perimys intermedius1 Kramarz 2002 caviomorph
33 specimens
 Rodentia -
Neoreomys australis4, Luantus propheticus3
Neoreomys australis4 Ameghino 1887 caviomorph
2 specimens
Luantus propheticus3 Ameghino 1899 caviomorph
16 specimens
1Kramarz 2002; 2Kramarz 2004; 3Kramarz 2006; 4Kramarz 2006; 5Kramarz and Bond 2005