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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Caviomorpha indet.1, Octodontoidea indet.1, Acarechimys minutus, Acarechimys minutissimus, Acarechimys gracilis
Acarechimys minutus Patterson and Pascual 1967 caviomorph MPM-PV 15087 MPM-PV 15088 MPM-PV 17436 MPM-PV 17437
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Interatherium sp.3, Protypotherium sp.3, "Protypotherium praerutilum" = Protypotherium praerutilum3, "Protypotherium attenuatum" = Protypotherium praerutilum3, Protypotherium australe3
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