2012
DOI: 10.25249/0375-7536.2012421198212
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Paleontology and depositional environments of the Tatuí and Irati formations (Permian) in the Ponte Nova Farm, Ipeúna, state of São Paulo

Abstract: The Paraná Basin, located at the center-eastern South America, exhibits a thick succession of Late Paleozoic deposits. Two early Permian formations are present in the State of São Paulo, Brazil: Tatuí (the oldest) and Irati. Two members make up the Irati Formation -the Taquaral (the oldest) and Assistência. This paper discusses the facies of the upper Tatuí Formation and Taquaral Member, and their fossil content, mainly at the Ponte Nova Farm. This locality exhibits well-preserved outcrops of both units, with … Show more

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Cited by 8 publications
(6 citation statements)
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“…1), White's proposal resulted in many stratigraphic researches, until reaching Barbosa & Gomes (1958) who subdivided the Irati into two members: Taquaral (lower) and Assistência (upper). This stratigraphic division was accepted by most of the researchers (Holz et al, 2010;Chahud et al, , 2012. Hachiro et al (1993) and Hachiro (1996) proposed upgrade the Irati Formation to Subgroup and the Taquaral and Assistência members to formations.…”
Section: Introductionmentioning
confidence: 95%
See 1 more Smart Citation
“…1), White's proposal resulted in many stratigraphic researches, until reaching Barbosa & Gomes (1958) who subdivided the Irati into two members: Taquaral (lower) and Assistência (upper). This stratigraphic division was accepted by most of the researchers (Holz et al, 2010;Chahud et al, , 2012. Hachiro et al (1993) and Hachiro (1996) proposed upgrade the Irati Formation to Subgroup and the Taquaral and Assistência members to formations.…”
Section: Introductionmentioning
confidence: 95%
“…The dorsal finspines of Elasmobranchii are rare, but it was possible to identify the genera Sphenacanthus Agassiz, 1837; Amelacanthus Maisey, 1982 and indeterminate species (Chahud et al, , 2012Chahud & Petri, 2014).…”
Section: Chondrichthyesmentioning
confidence: 99%
“…Apesar da diferença de espessura a composição sedimentológica é similar a observada em outras localidades (Chahud et al 2012;Chahud & Petri, 2010a;2015a;2015b), representados por arenitos finos a médios, conglomeráticos, com clastos de origem biológica, coprólitos e restos ósseos, ou Estudos Geológicos v 30(1) https://periodicos.ufpe.br/revistas/estudosgeologicos/index inorgânicos, sílex e quartzo. A granulometria varia de grânulos a calhaus, estes últimos observados apenas na base.…”
Section: Localização E Contexto Geológicounclassified
“…Os espinhos de nadadeiras dorsais de Elasmobranchii pertencem aos gêneros Sphenacanthus (Figura 3A) e Amelacanthus (Figura 3B) (Chahud et al, , 2012Chahud e Petri, 2014). Estes gêneros são registrados no hemisfério norte em depósitos carboníferos e permianos (Zangerl, 1981;Maisey, 1984;Elliott et al, 2004;Ginter et al, 2010;Koot et al, 2013).…”
Section: Chondrichthyesunclassified
“…A unidade foi por muitos anos mal interpretada ou confundida com a Fácies Ibicatu da Formação Tatuí (Fúlfaro et al, 1984;Stevaux et al, 1986). Porém trabalhos realizados por Soares (1972), Ragonha (1978), Hachiro (1991Hachiro ( , 1996, Riccomini et al (1997), Assine et al (2003), Chahud e Petri (2008a, 2015c e Chahud et al (2012) comprovaram que esta fácies pertencia à evolução sedimentar do Membro Taquaral. Ela é importante pela grande concentração de fósseis de ictiólitos, representados por dentes, escamas e espinhos desarticulados, além de outros fósseis.…”
Section: Introductionunclassified