San Andres de Giles (Pleistocene of Argentina)

Where: Buenos Aires, Argentina (34.4° S, 59.4° W: paleocoordinates 34.5° S, 59.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Buenos Aires Formation, Middle Pleistocene (0.8 - 0.1 Ma)

• Middle Pleistocene (Bonaerian Stage; c. 0.40-0.13 Ma)

Environment/lithology: terrestrial; siliciclastic sediments

• Sedimentological analyses of the Buenos Aires Formation show that, like the Ensenada Formation, is composed of alternating loess (deposited under cold arid conditions) and paleosoils (indicators of warmer and more humid climatic-environmental conditions), but with sediments less consolidated than in the underlying unit (Ensenada Formation) (Orgeira et al. 1998; Tonni et al. 1999b; Nabel et al. 2000). In this sense, the Bonaerian seems to represent a predominantly cold arid or semiarid phase (Cione & Tonni 2001), with brief interspersed warmer and more humid periods (Tonni & Cione 1994).
• This unit is sedimentologically very similar to the underlying formation (Ensenada Formation), but with less consolidated sediments (Tonni et al. 1999b), and the predominance of smectites could be linked to greater water content at the time of sedimentation (Nabel et al. 1993).

Size class: macrofossils

Primary reference: A. E. Zurita, A. A. Carlini, and G. J. Scillato-Yane. 2008. A new species of Neosclerocalyptus Paula Couto, 1957 (Xenarthra, Glyptodontidae, Hoplophorinae) from the middle Pleistocene of the Pampean region, Argentina. Geodiversitas 30(4):779-791 [M. Uhen/M. Shalap]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 113413: authorized by Mark Uhen, entered by Margaret Shalap on 30.07.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Cingulata - Panochthidae
Neosclerocalyptus gouldi n. sp.
Neosclerocalyptus gouldi n. sp. Zurita et al. 2008 edentate