Chronological Distribution of Brazilian Glyptodon SP. Remains: A Direct ¹⁴C Date for a Specimen from Iporanga, São Paulo, Brazil

Abstract

ABSTRACT. Glyptodon sp. fossil remains can be found throughout Brazil. However, little information is available about their chronological distribution. With the intention to contribute to this issue, we present, as far as we know, the first direct radiocarbon date for 1 specimen of this genus found in Brazil. The osteoderm MZSP-PV660 found in Abismo do Fóssil Cave

Insights into Holocene megafauna survival and extinction in southeastern Brazil from new AMS 14C dates

“…These results also indirectly reinforce Holocene survival for megafauna in other South American regions as well (Cione et al, 2001;Rossello et al, 2001;Messineo and Politis, 2009;Steele and Politis, 2009;Cruz et al, 2010). Hubbe et al (2011) from Abismo do Fóssil that is the sole direct date for this genus in Brazil and attests that it lived at least until the LGM in São Paulo State. Besides this date, there are two other direct dates from elsewhere in South America.…”

“…Four radiocarbon dates from Abismo do Fóssil Cave were obtained: one undetermined ground sloth species (Tardigrada), one Toxodon platensis, one Eremotherium laurillardi and one Scelidotheriinae. Hubbe et al (2011) recently reported a radiocarbon date for one Glyptodon clavipes from the same cave. The dated remains from the Abismo do Iguatemi Cave come from one Smilodon populator and one Catonyx cuvieri, both found at the lower level of the cave.…”

“…Before this study, only two fossil specimens were directly dated from São Paulo State (Neves et al, 2007;Hubbe et al, 2011) and together with the new dates presented here they offer the first glimpse of which extinct species were actually present in São Paulo at the end of the Pleistocene. It is possible to envision, for instance, a landscape inhabited by ground sloths (Catonyx and Eremotherium), toxodonts and saber-toothed cats near the Pleistocene/Holocene transition.…”

“…This is largely due to the lack of well-defined chronological distributions for megafauna species (Hubbe et al, 2007(Hubbe et al, , 2009Barnosky and Lindsey, 2010). Considering Brazil, for instance, although the megafaunal chronological framework has been substantially improved in the past decade (Rossetti et al, 2004;Auler et al, 2006;Neves et al, 2007;Hubbe et al, 2009Hubbe et al, , 2011, it is still developing and limited to a few regions of the country (Auler et al, 2006). Herein is presented six new direct AMS 14 C dates from two cave sites in São Paulo State (SE Brazil), a rich paleontological region with only two AMS dates reported so far, that will contribute to the growth of these chronologies.…”

Megafauna do Pleistoceno final de Matina, Bahia, Brasil: sistemática, cronologia e paleoecologia

“…No entanto, Piló (1998) apresenta uma datação de 77.700±6.100 (técnica U-series) para Hoplophorus euphractus (Minas Gerais), e Hubbe et al (2011), através de 14 C, encontraram para Glyptodon clavipes (São Paulo) uma idade de 20.680-21. 370 anos AP, sendo estas as únicas datações disponíveis no Brasil para esta família até o momento.…”