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

Where: Santa Cruz, Argentina (47.0° S, 70.6° W: paleocoordinates 47.7° S, 65.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pinturas Formation, Santacrucian (17.5 - 16.3 Ma)

• Pertains to "Upper Sequence" according to Kramarz and Bellosi, 2005 = typical Santacrucian

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

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 59324: authorized by Darin Croft, entered by Darin Croft on 26.03.2006, edited by Juan Carrillo, Philip Mannion and Jelle Zijlstra

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Rodentia - Erethizontidae
Branisamyopsis praesigmoides4
Branisamyopsis praesigmoides4 Kramarz 2004 porcupine
1 specimen
 Rodentia -
Steiromys duplicatus4
Steiromys duplicatus4 Ameghino 1887 caviomorph
1 specimen
 Rodentia - Chinchillidae
Prolagostomus sp.3
Prolagostomus sp.3 Ameghino 1887 chinchilid
8 specimens
 Rodentia - Eocardiidae
Phanomys mixtus5
Phanomys mixtus5 Ameghino 1887 caviomorph
4 specimens
 Rodentia -
Luantus toldensis n. sp.5, Neoreomys australis6
Luantus toldensis n. sp.5 Kramarz 2006 caviomorph
Holotype plus 6 specimens
Neoreomys australis6 Ameghino 1887 caviomorph
3 specimens
 Rodentia - Dinomyidae
Scleromys osbornianus6
Scleromys osbornianus6 Ameghino 1894 caviomorph
7 specimens
 Rodentia - Neoepiblemidae
Perimys sp.3, Perimys erutus3
Perimys sp.3 Ameghino 1887 caviomorph
2 specimens; probably a new species, but material is too fragmentary
Perimys erutus3 Ameghino 1887 caviomorph
6 specimens
 Rodentia -
Acarechimys minutissimus4, Stichomys sp.4, Spaniomys modestus4
Acarechimys minutissimus4 Ameghino 1887 caviomorph
2 specimens, MACN-PV SC2589 MACN-PV SC2590 (see also ref 72683)
Stichomys sp.4 Ameghino 1887 caviomorph
3 specimens
Spaniomys modestus4 Ameghino 1887 caviomorph
1 specimen
 Rodentia - Acaremyidae
Acaremys murinus1
Acaremys murinus1 Ameghino 1887 caviomorph
4 specimens
 Panameriungulata - Macraucheniidae
Theosodon sp.7
Theosodon sp.7 Ameghino 1887 placental
2 specimens, fragmentary
 Microbiotheria - Microbiotheriidae
Pachybiotherium illuminatum2
Pachybiotherium illuminatum2 Goin et al. 2010 marsupial
MACN-PV SC4463
1Arnal and Vucetich 2015; 2Barmak et al. 2021; 3Kramarz 2002; 4Kramarz 2004; 5Kramarz 2006; 6Kramarz 2006; 7Kramarz and Bond 2005