Sommerxylon spiralosus from Upper Triassic in southernmost Paraná Basin (Brazil): a new taxon with taxacean affinity by Etiene F. Pires, Margot Guerra-Sommer

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Growth ring analysis of fossil coniferous woods from early cretaceous of Araripe Basin (Brazil) by Etiene F. Pires, Margot Guerra-Sommer

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Epidermal morphology of the cordaitalean leaf Noeggerathiopsis brasiliensis nom. nov. from the southern Paraná Basin (Lower Permian, Rio Bonito Formation) and paleoenvironmental co... by Isabela Degani-Schmidt, Margot Guerra-Sommer

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Coricladus quiteriensis gen. et sp. nov., a new conifer in Southern-Brazil Gondwana (Lower Permian, Paraná Basin) by André Jasper, Fresia Ricardi-Branco, Margot Guerra-Sommer

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O significado estratigráfico do Complexo Solenoide no Permiano do Gondwana by Margot Guerra-Sommer, Isabela Degani-Schmidt, Diana Mussa, Pauline Sabina Kavali, Mahesh Shivanna

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Permian plants from the Chutani Formation (Titicaca Group, Northern Altiplano of Bolivia): I. Genera Pecopteris and Asterotheca by Carlos E. L. Vieira, Roberto Iannuzzi, Margot Guerra-Sommer, Enrique Díaz-Matrínez, George W. Grader

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Charcoal remains from a tonstein layer in the Faxinal Coalfield, Lower Permian, southern Paraná Basin, Brazil by André Jasper, Dieter Uhl, Margot Guerra-Sommer, Abdalla M. B Abu Hamad, Neli T. G Machado

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Bentonitas da Formação Irati no setor sul da Bacia do Paraná by Aurelio Fagundes Silva, Norberto Dani, Marcus Vinicius Dornelles Remus, Margot Guerra Sommer, Bruno Ludovico Dihl Horn

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Record of the genus Lycopodites in the Lower Permian of Paraná Basin, Brazil by Juliana Salvi, André Jasper, Fresia Ricardi-Branco, Mary Elizabeth C. Bernardes-de-Oliveira, Margot Guerra-Sommer

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Relation between the sedimentary organic record and the climatic oscilations in the Holocene attested by palynofacies and organic geochemical analyses from a pond of altitude in so... by GABRIELLI T. GADENS-MARCON, JOÃO G. MENDONÇA-FILHO, MARGOT GUERRA-SOMMER, MARCELO A. CARVALHO, ETIENE F. PIRES, LÉO A. HARTMANN

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The Artinskian Siderópolis Member macroflora, Rio Bonito Formation and its stratigraphical correlation with other early Permian macrofloras of Paraná Basin, Brazil by Mary Elizabeth Cerruti Bernardes-de-Oliveira, Sandra Eiko Mune, Maria Judite Garcia, Roberto Iannuzzi, Margot Guerra-Sommer, André Jasper, Pauline Sabina Kavali, Mahesh Shivanna, Karoline Gonçalves Pereira

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Indo-Brazilian Late Palaeozoic wildfires: an overview on macroscopic charcoal by André Jasper, Dieter Uhl, Rajni Tewari, Margot Guerra-Sommer, Rafael Spiekermann, Joseline Manfroi, Isa Carla Osterkamp, José Rafael Wanderley Benício, Mary Elizabeth Cerruti Bernardes-de-Oliveira, Etiene Fabbrin Pires, Átila Augusto Stock da Rosa

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