Left bank of La Ensenada Creek (Pleistocene of Argentina)

Where: Entre Ríos, Argentina (32.7° S, 60.6° W: paleocoordinates 32.7° S, 60.4° W)

• coordinate stated in text

• local area-level geographic resolution

When: Hernandarias Formation, Pleistocene (2.6 - 0.0 Ma)

• Fossils collected from the base of Unit 4

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; brown, sandy siltstone

• Clayey silt, 4.5–6 m, partly sandy, light brown to pink and reddish brown; some sections are loessoid and massive, forming a slope of approximately 50–608 of rounded or somewhat conical erosion microforms. It has MnO2 nodules and gypsum and intercalates with other sections with more vertical slopes that are composed of lenses or poorly defined levels of gravel and small calcium carbonate clasts in a coarse sand matrix.

Size class: mesofossils

Collection methods: CICyTTP-PV-M to refer to the Centro de Investigaciones Cientı´ficas y de Transferencia de Tecnología a la Producción de Diamante–CONICET, Paleontología de Vertebrados.

Primary reference: M. G. Vucetich, E. C. Vieytes, D. H. Verzi, J. I. Noriega, and E. P. Tonni. 2005. Unexpected primitive rodents in the Quaternary of Argentina. Journal of South American Earth Sciences 20(1-2):57-64 [C. Jaramillo/J. Carrillo]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 141592: authorized by Carlos Jaramillo, entered by Juan Carrillo on 29.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Rodentia - Echimyidae
Eumysops sp.
Eumysops sp. Ameghino spiny rat
 Rodentia -
Aenigmys diamantensis n. gen. n. sp.
Aenigmys diamantensis n. gen. n. sp. Vucetich et al. 2005 caviomorph