Where: Santa Cruz, Argentina (50.3° S, 70.2° W: paleocoordinates 50.9° S, 64.6° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Santa Cruz Formation, Santacrucian (17.5 - 16.3 Ma)
• Segundas Barrancas Blancas (SBB; 16.47–15.3 Ma), with three sites, Estancia Cordón Alto1 (ECA), Estancia Cordón Alto2 (ECA2), and Estancia el Tordillo (EET);
• formation-level stratigraphic resolution
Environment/lithology: "floodplain"; lenticular, paleosol/pedogenic, silty sandstone
Size classes: macrofossils, mesofossils
Collected by Fernicola et al in 2013-2014
• Recent fieldwork carried out between 2013 and 2014 by joint expeditions of the MLP, MACN, and Duke University
Primary reference: M. Arnal, M. G. Vucetich, D. A. Croft, M. S. Bargo, J. C. Fernícola and S. F. Viscaino. 2017. Systematic revision and evolutionary history of Acarechimys Patterson in Kraglievich 1965 (Rodentia, Caviomorpha, Octodontoidea). Ameghiniana 54(3):307-330 [P. Mannion/M. Kouvari]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 210637: authorized by Philip Mannion, entered by Miranta Kouvari on 10.06.2020
Creative Commons license: CC BY (attribution)
Taxonomic list
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Interatherium sp.3, Protypotherium sp.3, Protypotherium australe3, "Protypotherium praerutilum" = Protypotherium praerutilum3, "Protypotherium attenuatum" = Protypotherium praerutilum3
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Acarechimys minutus, Acarechimys minutissimus, Acarechimys gracilis, Stichomys sp.1, cf. Stichomys sp.1, Stichomys regularis1, Steiromys sp.1, Neoreomys sp.1, Neoreomys australis1, cf. Eocardia sp.1, Eocardia sp.1
Acarechimys minutus Patterson and Pascual 1967 caviomorph MPM-PV 15087 MPM-PV 15088 MPM-PV 17436 MPM-PV 17437
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