Also known as Olavarría; Cementos Avellaneda S.A. quarry

Where: Buenos Aires, Argentina (37.0° S, 60.3° W: paleocoordinates 37.1° S, 59.2° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• Miño-Boilini et al. 2019: Xen-121 in this study was recovered from the Neogene El Polvorín Formation (Poiré et al., 2005). This geological unit is part of the Neogene sedimentary cover, which lies unconformably over limestones of the Neoproterozoic Sierras Bayas Group (Poiré and Gaucher, 2009) and La Providencia Group (Arrouy et al., 2015), in the “Tandilia System” mountain range (Nágera, 1940) of Buenos Aires province. The specimen of Proscelidodon rothi was collected from the lower section of the El Polvorín Fm. (Fig. 2), from the “Facies Calera” defined by De los Reyes et al. (2013)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; massive, brown, silty sandstone

Size class: macrofossils

• Miño-Boilini et al. 2019: The material is housed at the Collection “Cementos Avellaneda”, Olavarría (Buenos Aires Province, Argentina), under the acronym Xen-121.

Primary reference: A. R. Miño-Boilini, M. G. De Los Reyes, A. E. Zurita, M. J. Arrouy, and D. G. Poiré. 2019. Pliocene Scelidotheriinae (Xenarthra, Tardigrada) from the Pampean region of Argentina: Morphology, chronology, and comments on the diversity of the subfamily. Comptes Rendus Palevol 18:325-334 [P. Mannion/G. Varnham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 202333: authorized by Philip Mannion, entered by Grace Varnham on 06.07.2019

Creative Commons license: CC BY (attribution)