12/23/2023 0 Comments Mastodonte rosario argentinaAmebelodon, Gomphotherium, and Serbelodon specimens of the Barstovian and Clarendonian faunal stages fed on C3 plants while the same Hemphillian genera consumed a mixed C3/C4 diet. (2017) for some specimens from North America (USA and Mexico) (21 values Appendix 1).īased on data from analyses on previously-reported carbon stable isotope data from dental enamel and dentine from tusks reported in the literature, diets were inferred for the gomphothere genera Amebelodon, Cuvieronius, Gomphotherium, Rhynchotherium, Serbelodon, and Stegomastodon (Proboscidea, Gomphotheriidae) that inhabited the Americas during the Cenozoic. Also, records for values at the family or subfamily level have been added, as shown by Latorre et al. This work lists 312 d 13 C values recorded for the genera Amebelodon (MacFadden and Cerling, 1996 Bowman et al., 2017 ), Cuvieronius DeSantis et al., 2009 Nunez et al., 2010 P erez-Crespo et al., 2014, 2015a, 2016b, Bravo-Cuevas et al., 2017, Gomphotherium (Fox and Fisher, 2004 Feranec and MacFadden, 2006 Bowman et al., 2017 ), Rhynchotherium (MacFadden and Cerling, 1996 P erez-Crespo et al., 2015b ), Serbelodon (Kita et al., 2014 ), and Stegomastodon (Kita et al., 2014 P erez-Crespo et al., 2014) Bolivia, Brazil, Chile, Ecuador, and Uruguay (S anchez et al., 2004 Alberdi et al., 2008 Guti errez et al., 2005 Viana et al., 2011 Dantas et al., 2013Dantas et al.,, 2017Domingo et al., 2012 Franca et al., 2014 G onzalez-Guarda et al., 2017, 2018 Appendix 1). This research presents the first annual series of isotopic composition for proboscidean tusks from BIR and the first evidence that the species lived in this region during the Holocene. The other individual was from Coronel João Sá county that lived in the beginning of the Holocene at 9 ka BP, and presented a mixed feeder diet with consumption of C4 grass and C3 plants (pi = 40%), in an environment with high precipitation variation. The tusk fragment LGUESB 0002 was from an individual from Vitória da Conquista county, which lived at 17 ka BP and had a constant grazer diet in a stable climate environment. In the present study we used stable isotopes (carbon and oxygen) in tusk fragments, allowing us to retrieve information about the six years of life for two individual specimens from Bahia state. However, all these techniques allow us to know only punctual information about its diet. In the last decades, its feeding behavior has been rebuilt mainly through dental calculus, enamel microwear and stable isotope analyses. ![]() ![]() Notiomastodon platensis was an endemic South American proboscidean, which could reach about six tons and had a mixed feeder diet with predominance of C4 grasses in Brazilian Intertropical Region (BIR).
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