New gymnospermous woods from the Permian of the Parnaíba Basin, Northeastern Brazil, Part I: Ductoabietoxylon, Scleroabietoxylon and Parnaiboxylon

Kurzawe, Francine; Iannuzzi, Roberto; Merlotti, Sheila; Röβler, Ronny; Noll, Robert

doi:10.1016/j.revpalbo.2012.12.004

Cited by 37 publications

(14 citation statements)

References 13 publications

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“…However, woods showing solenoid piths with canals and ducts, as well as secretory and sclerenchymatic cells, and araucarian pitting in the radial walls of the tracheids were described for the lower Motuca Formation in the Parnaíba Basin by Kurzawe et al (2013aKurzawe et al ( , 2013b. The assemblage is anatomically comparable to the ones discussed in the present study despite the absence of growth rings in the secondary wood in the Parnaíba Basin.…”

Section: Fossil Woods As Correlation Toolssupporting

confidence: 77%

The stratigraphic significance of the Solenoid Complex in the Permian of Gondwana

Guerra-Sommer

Degani-Schmidt

Mussa

et al. 2014

Geol. USP, Sér. cient.

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Section: Fossil Woods As Correlation Toolssupporting

confidence: 77%

The stratigraphic significance of the Solenoid Complex in the Permian of Gondwana

Guerra-Sommer

Degani-Schmidt

Mussa

et al. 2014

Geol. USP, Sér. cient.

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“…of Buritiranopteris costata (Tavares et al, 2014); e) the growth-ring-like patterns found in Arthropitys stems (Neregato et al, 2015), roots (Rößler et al, 2014), and in associated gymnosperms (Kurzawe et al, 2013a(Kurzawe et al, , 2013bBenício et al, 2015). However, availability of water must have existed annually to support the diversity of plant groups and their arborescent stature.…”

Section: Fascicular Wedges Well Defined Throughout the Woodmentioning

confidence: 99%

New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras

Neregato

Rößler

Iannuzzi

et al. 2017

Review of Palaeobotany and Palynology

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Continuing palaeofloristic studies in the Northern Tocantins Fossil Forest, we describe two new calamitalean species from the Permian of the Parnaíba Basin (central-north Brazil). The fossils comprise axes of various sizes, preserved anatomically as siliceous petrifactions, and found in highly mature sandy fluvial deposits of the Motuca Formation. Based on anatomical and morphological characteristics, Arthropitys tocantinensis sp. nov. and Arthropitys barthelii sp. nov. are described. They share a small central pith cavity (extremely reduced in the latter), scalariform tracheid pitting, and prominent pitting of the ray parenchyma. However, they differ markedly in their branching system: the former having 3-12 branches per node either with or lacking secondary growth, the latter showing 2-17 branches without any secondary growth. However, in A. tocantinensis sp. nov., the presence of large woody branches supports a more complex architecture with at least three successive orders of branches. The extensive secondary tissue in both species is homogeneous; clear segmentation is only visible in the proximal wood of A. tocantinensis sp. nov., but completely absent in A. barthelii sp. nov. The growth architecture of these upright growing, self-supporting trunks are reconstructed based on sizable transverse and longitudinal preparations. Our results confirm that thick woody calamitaleans were elements of disturbed riparian vegetation and much more diverse in terms of anatomy and branching patterns than previously thought. They were well adapted to seasonally dry conditions and formed major plant constituents of Permian low-latitude Southern Hemisphere communities. Additionally, we report the first evidence of colonisation on arborescent calamitaleans by herbaceous sphenophyte axes from the Permian. One of the Arthropitys stems hosts at least 30 Sphenophyllum shoots of various ontogenetic stages, growing inside the destroyed pith, which was previously excavated by arthropod boring. Based on the distribution of key genera within late Paleozoic floras of Euramerica, Gondwana and Cathaysia floral realms cluster analysis and Jaccard Coefficient highlight the distribution of a "Mid-North Brazilian" phytogeographic Region during the early Permian.

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“…Assim, a associação do SPSB parece estar preservada ainda dentro de seu ambiente sedimentar original. Na Bacia do Parnaíba existem outras duas grandes ocorrências de madeiras fósseis descritas para o Permiano, a saber: o "Monumento Natural das Árvores Fossilizadas do Tocantins" (MNAFTO), situado em Filadélfia, norte do Tocantins (Coimbra & Mussa, 1984;Mussa & Coimbra, 1987;Röβler & Galtier, 2002a, 2002bRöβler, 2006;Dias-Brito et al, 2009;Kurzawe et al, 2013aKurzawe et al, , 2013bCapretz & Rohn, 2013;Tavares et al, 2014;Neregato et al, 2015); e a "Floresta Fóssil do Rio Poti" (FFRP), localizada às margens e junto ao leito do Rio Poti, na área urbana de Tere-Figura 5. Troncos fósseis do SPSB.…”

Section: Comparação Com Outras Florestas Petrificadas Da Bacia Do Parunclassified

“…Ressalta-se também a significativa abundância de samambaias arborescentes no MNAFTO (constituindo cerca de 90% dos caules fósseis), sendo o gênero Tietea o táxon de maior frequência (Dias-Brito et al, 2009; Tavares et al, 2014). Por outro lado, nota-se uma escassez de gimnospermas no MNAFTO, embora haja estudos focados neste grupo (Kurzawe et al, 2013a(Kurzawe et al, , 2013b. Isto contrasta com a predominância de gimnospermas nas florestas fósseis de Teresina (FFRP) e Altos (SPSB).…”

Section: Comparação Com Outras Florestas Petrificadas Da Bacia Do Parunclassified

“…Em termos do registro de vegetais fósseis, o Estado do Piauí possui um rico e significativo acervo, embora relativamente pouco estudado. Apesar da existência de uma série de trabalhos recentes sobre o conteúdo paleobotânico do Permiano desta bacia (síntese em Kurzawe et al, 2013aKurzawe et al, , 2013bTavares et al, 2014;Neregato et al, 2015), pouco se conhece sobre a paleoflora deste período no referido estado, sendo que a grande maioria versa sobre os achados do norte de Tocantins. A maior parte dos estudos disponíveis para o Piauí é antiga e corresponde a trabalhos pontuais, voltados quase que exclusivamente à flora de pteridófitas (e.g., Brongniart, 1872;Pelourde, 1912;Oliveira, 1934;Dolianiti, 1954).…”

Section: Introductionunclassified

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Novo registro de floresta petrificada em Altos, Piauí: relevância e estratégias para geoconservação

2016

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Apresenta-se aqui uma nova ocorrência de plantas fósseis na Formação Pedra de Fogo, Permiano inicial da Bacia Sedimentar do Parnaíba, NE do Brasil. A ocorrência, aqui denominada Sítio Paleobotânico São Benedito, situa-se no Município de Altos, Estado do Piauí, e caracteriza-se por apresentar uma significativa quantidade de troncos gimnospérmicos de grande porte, medindo até 1,80 m de diâmetro, sendo que alguns se encontram possivelmente em posição de vida. Foram catalogados mais de 70 troncos fósseis, configurando-se, provavelmente, na maior concentração de troncos permineralizados registrada para o estado, superando a “Floresta Fóssil do Rio Poti”, em Teresina. Por último, são apresentadas propostas de geoconservação para o sítio, tendo em vista que tal ocorrência se encontra atualmente sem bases legais para sua proteção. Este novo registro demonstra o grande potencial que existe para o desenvolvimento de estudos paleobotânicos nessa bacia.

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New gymnospermous woods from the Permian of the Parnaíba Basin, Northeastern Brazil, Part I: Ductoabietoxylon, Scleroabietoxylon and Parnaiboxylon

Cited by 37 publications

References 13 publications

The stratigraphic significance of the Solenoid Complex in the Permian of Gondwana

The stratigraphic significance of the Solenoid Complex in the Permian of Gondwana

New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras

Novo registro de floresta petrificada em Altos, Piauí: relevância e estratégias para geoconservação

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