Registro Faunístico y Paleoambientes del Cuaternario Tardío, Provincia de la Pampa, Argentina

Advances in the Understanding of Neogene Mammalian Fauna in the Pampean Region (Central Argentina) Through Revising “Biozone” Hypotheses Based on New Dates and Biochronological Analyses

“…Province (Llambías, 1975;Linares et al, 1980) have been known since a long time ago (e.g., Doering, 1882;Ameghino, 1906;Stappenbeck, 1926;Cabrera, 1939;Pascual, 1961), and identified as "Epecuén Formation", "Araucanian", "Huayquerian", and Pliocene and/or Late Miocene in age (Simpson, 1940;Pascual, 1961;Pascual et al, 1965;Pascual & Bondesio, 1981, 1982. However, it was since the end of the decade of 1980 that the knowledge of the fossils of this unit was greatly expanded due to the extensive work of Claudia Montalvo and collaborators (e.g., Goin & Montalvo, 1988;Montalvo & Casadío, 1988;Montalvo, 2004;Sostillo et al, 2014Sostillo et al, , 2018Sostillo et al, , 2021Sostillo et al, , 2022Montalvo et al, 2019Montalvo et al, , 2023a. In these con- tributions, these assemblages were referred to the Late Miocene and mainly to the "Huayquerian" (e.g., .…”

A Patagonian swan (Anatidae: Anserinae) from the Upper Pleistocene of Austral Chaco (Argentina)

“…sharp broken edges in the shaft and abraded irregular surfaces in its distal end). The abrasion, present in the distal end of this fossil, in general suggests fluvial transport (Aslan & Behrensmeyer, 1996;Montalvo et al, 2013). Then the mixture of abraded and non-abraded bones could indicate that CICPSGE 20/21 was subjected to different flow regimes (e.g.…”

“…This implies that as the current moved the humerus, it probably rolled uniformly as a cylindrical body, which would have distributed evenly the breaking and abrasion (Lopes & Ferigolo, 2015). The large form and dimension of this bone probably facilitated its entrainment by flow and its fragmentation would have been the result of several impacts with the bottom of the fluvial environment during its transport (Trapani, 1998;Fernández-Jalvo & Andrews, 2003;Montalvo et al, 2013;Tomassini & Montalvo, 2013).…”

Exploitation of faunal resources by hunter-gatherers in the center of the Pampa grasslands during the Holocene: The archaeofauna of the Laguna Cabeza de Buey 2 site (San Carlos de Bolivar, Buenos Aires, Argentina)

“…This shallow lake is situated on the eastern border of the aeolian unit called by Z arate and Tripaldi (2012) the Central Pampean Dunefield, which was characterized on the basis of its geomorphological features and the geological and structural settings. The main landforms in the Central Pampean Dunefield are linear dunes, 100e130 km long and 2e3 km wide, with a general north-northeast trend and a relative relief of around 2 m. Dune orientations suggest paleowinds from the southwest quadrant (Iriondo, 1999;Z arate and Tripaldi, 2012) and the occurrence of megafauna fossil remains at the lower section of a dune in western of the Pampean dunefield was used to infer active aeolian accumulation during the Late Pleistocene (Montalvo et al, 2013). Kruck et al (2011) used remote sensing data and physical age determinations (luminescence) of sands to reconstruct the climatic history of the Pampa plains.…”