ANGELA KINOSHITA
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Artigo IPEN-doc 20824 Dating human occupational at Toca do Serrote das Moendas, São Raimundo Nonato, Piaui-Brasil by electron spin resonance and optically stimulated luminescence2014 - KINOSHITA, ANGELA; SKINNER, ANNE R.; GUIDON, NIEDE; IGNACIO, ELAINE; FELICE, GISELE D.; BUCO, CRISTIANE de A.; TATUMI, SONIA; YEE, MARCIO; FIGUEIREDO, ANA M.G.; BAFFA, OSWALDOExcavation of Toca do Serrote das Moendas, in Piauí state, Brazil revealed a great quantity of fossil wild fauna associated with human remains. In particular, fossils of a cervid (Blastocerus dichotomus) were found, an animal frequently pictured in ancient rock wall paintings. In a well-defined stratum, two loose teeth of this species were found in close proximity to human bones. The teeth were independently dated by electron spin resonance (ESR) in two laboratories. The ages obtained for the teeth were 29 ± 3 ka (thousands of years) and 24 ± 1 ka. The concretion layer capping this stratum was dated by optically stimulated luminescence (OSL) of the quartz grains to 21 ± 3 ka. As these values were derived independently in three different laboratories, using different methods and equipment, these results are compelling evidence of early habitation in this area.Artigo IPEN-doc 16907 Determination of uranium and thorium by neutron activation analysis applied to fossil samples dating2011 - TICIANELLI, REGINA B.; FIGUEIREDO, ANA M.G.; ZAHN, GUILHERME S.; KINOSHITA, ANGELA; BAFFA, OSWALDOArtigo IPEN-doc 10183 Study of paramagnetic and luminescence centers of microcline feldspar2003 - TATUMI, S.H.; KINOSHITA, A.; FUKUMOTO, M.E.; COURROL, L.C.; KASSAB, L.R.P.; BAFFA, O.; MUNITA, C.S.Artigo IPEN-doc 20128 Electron spin resonance dating of megafauna from Lagoa dos Porcos, Piaui, Brazil2014 - KINOSHITA, ANGELA; MAYER, ELVER; MENDES, VINICIUS R.; FIGUEIREDO, ANA M.G.; BAFFA, OSWALDOExcavations performed at Lagoa dos Porcos site revealed a vast amount of extinct mammal fossil remains, becoming one of the richest palaeontological occurrences in the Serra da Capivara National Park region, a UNESCO World Heritage. Although anatomic and taxonomic aspects of extinct Quaternary mammals are relatively well known, chronologic information for deposits is rare. In this context, electron spin resonance (ESR) dating of megafauna samples provides important information for establishing a chronological background. This work presents the ESR dating of two teeth, one of Gomphotheriidae and other of Toxodontinae. Dose – response curves of each sample were constructed using spectra acquired with a JEOL FA-200 X-Band spectrometer resulting in equivalent dose (De) of 220+40 Gy and 39+2 Gy for Toxodontinae and Gomphotheriidae tooth, respectively. The conversion of De in age was made using ROSY ESR dating software resulting in 26+4 and 22+3 ka. These results place Lagoa dos Porcos fossil assemblage within the Late Pleistocene. These dates overlap with a period of abrupt increase in rainfall in northeast Brazil, and it is possible that this environmental change is related to the formation of this deposit.Artigo IPEN-doc 19564 Electron spin resonance dating of the late quaternary megafauna fossils from Baixa Grande, Bahia, Brazil2013 - RIBEIRO, R.C.; KINOSHITA, ANGELA; FIGUEIREDO, ANA M.G.; CARVALHO, I.S.; BAFFA, OSWALDOArtigo IPEN-doc 19041 The northernmost record of catagonus stenocephalus (Lund in Reinhardt, 1880) palaeobiogeographical significance2013 - AVILLA, LEONARDO S.; MULLER, LISIANE; GASPARINI, GERMAN M.; SOIBELZON, LEOPOLDO; ABSOLON, BRUNO; PEGO, FREDERICO B.; SILVA, RAFAEL C.; KINOSHITA, ANGELA; FIGUEIREDO, ANA M.G.; BAFFA, OSWALDODuring fieldwork carried out in January 2009 at Aurora do Tocantins (Tocantins State, northern Brazil), we recovered a fragmentary right maxilla (UNIRIO-PM 1006) of Catagonus stenocephalus from a sedimentary deposit of presumed late Pleistocene age in a karstic cave. This paper aims to: (1) provide the first record of C. stenocephalus in the northern region of Brazil (and consequently, also the northernmost one); (2) update the geographic distribution of C. stenocephalus; (3) present a date for the specimen; and (4) discuss the palaeoenvironmental and palaeobiogeographical implications of the finding. The species C. stenocephalus (Lund) is known from the Bonaerian (middle Pleistocene) and Lujanian (late Pleistocene to earliest Holocene) ages in Argentina, Uruguay, Brazil and Bolivia. The new record presented here extends the geographical distribution of C. stenocephalus more than 1000 km north from the former northernmost record (caves of Lagoa Santa region). Peccaries of the genus Catagonus have several morphological features associated with cursorial habits in relatively open and dry environments. The new distributional range of C. stenocephalus is coincident with the Chacoan subregion, characterized by dry climates and open areas. As the studied material comes from the top of the carbonate layer, this may suggest that the deposition of the C. stenocephalus remains described here is synchronous with the onset of a wetter climate phase. This argumentis also in accordancewith the datation results, around 20 ky BP, just after the last glacialmaximum. This increasingly wet climate, which may also be related to the climatic changes that occurred during the late Pleistocene/early Holocene, could be a factor in the extinction of C. stenocephalus in South America.Artigo IPEN-doc 16637 ESR dating of teeth from brazilian megafauna2008 - OLIVEIRA, L.C.; KINOSHITA, A.; BARRETO, A.M.F.; FIGUEIREDO, A.M.; SILVA, J.L.L.; BAFFA, O.Artigo IPEN-doc 14900 ESR dating of pleistocene mammal teeth and its implications for the biostratigraphy and geological evolution of the coastal plain, Rio Grande do Sul, southern Brazil2010 - LOPES, RENATO P.; OLIVEIRA, LUIZ C.; FIGUEIREDO, ANA M.G.; KINOSHITA, ANGELA; BAFFA, OSWALDO; BUCHAMANN, FRANCISCO S.Artigo IPEN-doc 13213 Electron spin resonance dating of human teeth from Toca da Santa shelter of Sao Raimundo Nonato, Piaui, Brazil2008 - KINOSHITA, A.; FIGUEIREDO, A.M.G.; FELICE, G.D.; LAGE, M.C.S.M.; GUIDON, N.; BAFFA, O.Artigo IPEN-doc 11623 ESR dating of an acient goat tooth from Nuoro, Sardinia, Italy2006 - BAFFA, O.; KINOSHITA, A.; FIGUEIREDO, A.M.G.; BRUNETTI, A.; GINESU, S.