Calera Avellaneda (Body A) (Pliocene of Argentina)

Where: Buenos Aires, Argentina (37.0° S, 60.2° W: paleocoordinates 37.0° S, 59.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: El Polvorín Formation, Chapadmalalan (4.0 - 3.0 Ma)

• Body A in Facies Calera

• bed-level stratigraphic resolution

Environment/lithology: fluvial; silty sandstone

• Brownish, massive Loessic facies with channelised conglomerates. This level is composed of pink-brownish (dry 7.5YR7/4, humid 7.5YR4/4) well-sorted silty sandstone showing small-scale (20 x 50 cm on average) trough cross-bedding and bearing a high-frequency occurrence of fossil vertebrates.

Size class: macrofossils

Primary reference: G.n.M. Gasparini, M. De los Reyes, A. Francia, C. S. Scherer, and D. G. Poiré. 2017. The oldest record of Hemiauchenia Gervais and Ameghino (Mammalia, Cetartiodactyla) in South America: Comments about its paleobiogeographic and stratigraphic implications. Geobios 50:141-153 [P. Holroyd/K. Magoulick/P. Mannion]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 203907: authorized by Patricia Holroyd, entered by Katherine Magoulick on 27.08.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Artiodactyla - Camelidae
Hemiauchenia sp. Gervais and Ameghino 1880 camel
MAM-70