Santa Cruz (Miocene of Argentina)

Where: Santa Cruz, Argentina (50.9° S, 69.1° W: paleocoordinates 51.5° S, 63.5° W)

• coordinate stated in text

• local area-level geographic resolution

When: Santa Cruz Formation, Santacrucian (17.5 - 16.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Collected by C. Ameghino

Primary reference: S. F. Vizcaíno, R. F. Kay, and M. S. Bargo. 2012. Background for a paleoecological study of the Santa Cruz Formation (late Early Miocene) on the Atlantic Coast of Patagonia. In S. F. Vizcaí­no, R. F. Kay, M. S. Bargo (eds.), Early Miocene Paleobiology in Patagonia: High-Latitude Paleocommunities of the Santa Cruz Formation 1-22 [J. Zijlstra/J. Zijlstra/J. Zijlstra]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 176575: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 17.02.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Xenarthra - Mylodontidae
Nematherium sp.3 Ameghino 1887 edentate
YPM-VPPU 18009, skull, mandible, postcrania
 Sparassodonta -
"Cladosictis patagonica" = Cladosictis patagonica5, "Hathliacynus lustratus n. sp." = Cladosictis patagonica5, "Hathliacynus cultridens n. sp." = Cladosictis patagonica5, "Hathliacynus rollieri n. sp." = Cladosictis patagonica5, "Amphithereutes obscurus n. sp." = Cladosictis patagonica5, ? Acyon bardus n. sp.2
"Cladosictis patagonica" = Cladosictis patagonica5 Ameghino 1887 metatherian
MACN 665, dentary; MACN 85, maxillary P3-M1; MACN 86, maxillary M1-3; MLP 11-11, dentary; MLP 11-120, dentary m2; MLP 11-15, dentary m3; MLP 11-8, dentary m1-3
"Hathliacynus lustratus n. sp." = Cladosictis patagonica5 Ameghino 1887 metatherian
MLP 11-2, dentary p1-2
"Hathliacynus cultridens n. sp." = Cladosictis patagonica5 Ameghino 1887 metatherian
MLP 11-9, dentary m4
"Hathliacynus rollieri n. sp." = Cladosictis patagonica5 Ameghino 1887 metatherian
MLP 11-17, maxilla M1-2
"Amphithereutes obscurus n. sp." = Cladosictis patagonica5 Ameghino 1887 metatherian
MLP 11-10, mandible m1-4
? Acyon bardus n. sp.2 Ameghino 1889 metatherian
MACN 9, dentary m3-4
 Sparassodonta - Borhyaenidae
Prothylacynus patagonicus4 Ameghino 1891 metatherian
MLP 11-38, mandible; MACN 189, dentary with partial m4
 Microbiotheria - Microbiotheriidae
Microbiotherium patagonicum6 Ameghino 1887 marsupial
MACN 1, dentary p1-m1 ("tipo" of _Microbiotherium tehuelchum_)
 Paucituberculata - Palaeothentidae
Palaeothentes aratae1 Moreno 1882 marsupial
Palaeothentes minutus1 Ameghino 1887 marsupial
Palaeothentes lemoinei1 Ameghino 1887 marsupial