Mammalian fossils from Gruta do Ioiô cave and past of the Chapada Diamantina, northeastern Brazil, using taphonomy, radiocarbon dating and paleoecology

Eltink, Estevan; Castro, Mariela C.; Montefeltro, Felipe Chinaglia; Dantas, Mário André Trindade; Scherer, Carolina Saldanha; Oliveira, Paulo Victor de; Langer, Max C.

doi:10.1016/j.jsames.2019.102379

Cited by 23 publications

(13 citation statements)

References 103 publications

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“…Two samples with different fossil diagenetic features that are commonly found in limestone Brazilian caves were chosen [40][41][42][43][44] . We classified the samples by their different taphonomic attributes ( Supplementary Table S1) for each fossil-bearing site.…”

Section: Methodsmentioning

confidence: 99%

“…The carbonate facies of the Una-Utinga Basin forms a broad karstic system with copious limestone caves. Cartelle et al 40 and other researchers 41 – 43 described Quaternary fossils from these caves, including a diversity of giant sloths and other mammals. In the Lapinha cave, the fossil record includes postcranium, tooth, mandibles, and fragmentary skulls of mammals, such as the ground sloth genera ( Catonix , Valgipes, and Nothrotherium ), cervid ( Mazama ), felid ( Smilodon ), and tapirid ( Tapirus ) 44 .…”

Section: Introductionmentioning

confidence: 98%

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Diagenetic processes in Quaternary fossil bones from tropical limestone caves

Sousa

Eltink

Oliveira

et al. 2020

Sci Rep

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Quaternary fossils from limestone caves bear various diagenetic features due to the complex nature of sedimentary processes. However, few studies have addressed the problem of diagenetic changes in fossils from tropical-wet environments. We study Quaternary fossil bones from different sites of a tropical limestone cave in northeastern Brazil. These fossils show diverse diagenetic features. The approach encompassed the use of scanning electron microscopy, Raman spectroscopy, and X-ray diffraction to understand the modification of the fossil bone structure, chemical composition, and mineral assemblage during the diagenesis processes. We describe a model for fossil diagenesis in tropical limestone caves that involves early and advanced diagenetic stages, which produce two routes with different endmembers. The diagenesis in the cave alters the crystallinity and ordering of hydroxyapatite. The recrystallization of hydroxyapatite appears to be strongly influenced by dripping water that is rich in calcium carbonate, which leads to crystal formation with higher crystallinity. In the absence of calcium carbonate, hydroxyapatite diagenesis involves crystal growth but not necessarily dissolution of the original material, which enables remarkable preservation of the biological structure.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Diagenetic processes in Quaternary fossil bones from tropical limestone caves

Sousa

Eltink

Oliveira

et al. 2020

Sci Rep

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“…Radiocarbon dating allows us to suggest that H. mirim lived in Bahia (northeastern Brazil) during the Last Glacial Maximum, at 20 010 ± 65 (22 345-21,907 cal a BP), together with P. major, which had a temporal distribution between 350 and 24 ka in northeastern Brazil (Auller et al, 2006;Dantas et al, 2011;Eltink et al, 2020). Its δ 13 C was −10.3‰, indicating a mixed-feeding diet composed of 74% C 3 plants and 26% C 4 plants, a richer isotopic diet in C 3 plants than that of P. major (δ 13 C = −8.1 ± 3.4‰), which was composed of 58% C 3 plants and 42% C 4 plants (Pansani et al, 2019;Eltink et al, 2020;Dantas et al, 2020).…”

Section: Radiocarbon Dating and Isotopic Paleoecology (δ 13 C)mentioning

confidence: 99%

A new species of small Camelidae from the Late Pleistocene of Brazil

Greco

Dantas

Cozzuol

2022

J Quaternary Science

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Camelids have been known in South America since the late Pliocene, where they arrived from North America as part of the Great American Biotic Interchange (GABI). They became extinct in North America by the late Pleistocene, while surviving in the Southern Cone of South America and in high altitudes of the Andean region. Extinct South American camelids are generally included in the genera Palaeolama and Hemiauchenia, members of which are larger than modern species. We describe here a new, small species of the genus Hemiauchenia based on late Pleistocene specimens previously assigned to Lama guanicoe. This specimen lived in northeastern Brazil at 22 345–21 907 cal a bp, and had a diet composed mainly of C3 plants.

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“…El linaje Puma está integrado por los félidos sudamericanos actuales Puma concolor y Herpailurus yagouaroundi Geoffroy Saint-Hilaire, 1803 junto con la especie africana Acinonyx jubatus (Schreber, 1775), conformando así un grupo monofilético, el cual, según datos moleculares, se diferenció de los restantes grupos de felinos hace unos 6,7 Ma (Johnson et al, 2006;Werdelin et al, 2010;Saremi et al, 2019;ver también Kitchener et al, 2017;Chimento y Dondas, 2017;Prevosti y Forasiepi, 2018). Los registros fósiles de Puma concolor se extienden desde el Pleistoceno Temprano-Medio en Argentina hasta el Pleistoceno Tardío y Holoceno en Argentina, Brasil, Perú, Ecuador, Uruguay y con dudas en Chile (Ubilla, 1985(Ubilla, , 2004Labarca, 2015;Chimento y Dondas, 2017;Prevosti y Forasiepi, 2018;Eltink et al, 2020;Salles et al, 2020). Por otro lado, H. yagouaroundi está registrado para el Pleistoceno Tardío de Brasil y con dudas para Argentina y Bolivia (Prevosti y Forasiepi, 2018;Ercoli et al, 2019).…”

Section: Registro Fósil Y Paleobiogeografíaunclassified

“…Puma concolor Linnaeus, 1771 es el mamífero terrestre de América que tiene actualmente la distribución geográfica más extensa, desde Alaska hasta la Patagonia austral (Currier, 1983;Chimento y Dondas, 2017;Eltink et al, 2020;Chahud, 2021). Si bien se han reconocido varias subespecies (e.g., Currier, 1983;Culver et al, 2000), en la actualidad solo dos se mantienen vigentes: P. c. cougar (Kerr, 1792) en América del Norte, Central, y posiblemente el norte de Sudamérica, al oeste de los Andes, y P. c. concolor (Linnaeus, 1771) que habita en el resto de Sudamérica (Caragiulo et al, 2014;Kitchener et al, 2017).…”

Section: Introductionunclassified

Nuevo registro de Puma concolor Linnaeus, 1771 (Carnivora, Felidae) para el Pleistoceno Tardío de Uruguay y su importancia paleoecológica

Manzuetti

Jones²,

Ubilla

et al. 2022

andgeo

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Felidae entered South America from North America during the Ensenadan Stage/Age (Early to Middle Pleistocene). For Uruguay their fossil record is scarce but informative, although mostly correspond to large felids (Smilodon, Panthera onca). In this work describes fossil remain of a skull and a mandible assigned, based on morphology and statistical analysis, to Puma concolor. These materials were unearthed from Late Pleistocene sediments (Sopas Formation) from northern Uruguay. Based on these remains some paleobiological and paleoecological aspects are discussed. This specimen had a body mass of about 45 kg, with the potential capacity to hunt animals over 200 kg, which is in agreement with previous reports for other fossil puma remains. During Late Pleistocene, in the current territory of Uruguay, Puma concolor would have shared ecological niche with other large carnivore such as sabre-tooth cats (Smilodon populator, S. fatalis), the jaguar Panthera onca, the canid Protocyon troglodytes, and short-faced bears Arctotherium, feeding upon medium-sized animals in diverse environment.

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Mammalian fossils from Gruta do Ioiô cave and past of the Chapada Diamantina, northeastern Brazil, using taphonomy, radiocarbon dating and paleoecology

Cited by 23 publications

References 103 publications

Diagenetic processes in Quaternary fossil bones from tropical limestone caves

Diagenetic processes in Quaternary fossil bones from tropical limestone caves

A new species of small Camelidae from the Late Pleistocene of Brazil

Nuevo registro de Puma concolor Linnaeus, 1771 (Carnivora, Felidae) para el Pleistoceno Tardío de Uruguay y su importancia paleoecológica

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