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	Provedor de dados Acta Botanica (2) Autor Sá,Natália de Paula (2) Absy,Maria Lúcia (1) Carvalho,Marcelo de Araújo (1) Soares,Emílio Alberto Amaral (1) Palavra-chave Amazon (1) Miocene (1) Miospores (1) Neogene (1) Palynology (1) Pollen (1) Quaternary (1) Rainfall (1) Solimões (1) Terra firme forest (1) Vegetation (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2017 (1) 2016 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Late Holocene paleoenvironments of the floodplain of the Solimões River, Central Amazonia, based on the palynological record of Lake Cabaliana Acta Botanica Sá,Natália de Paula; Absy,Maria Lúcia; Soares,Emílio Alberto Amaral. ABSTRACT The core PD-67 of 160 cm depth was collected from the delta of Lake Cabaliana situated on the Solimões River. Seventeen samples were removed for palynological and sedimentological analysis and three for radiocarbon analysis. Two dry periods, both in the Late Holocene, were observed (2800-2550 cal yr BP, 1450-550 cal yr BP) separated by a wetter phase (2550-1450 cal yr BP). In 2800-2550 cal yr BP, varzea forests of Alchornea, Symmeria, Cecropia, Alternanthera and Asteraceae were predominant. Beginning in 2,550-1450 cal yr BP, the varzea was characterized by pioneer elements, such as Cassia, Laetia, Mabea, Symmeria and Cecropia, and by the expansion of Poaceae, Cyperaceae, Sagittaria, Montrichardia and Asteraceae. In 1450-550 cal yr BP the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Pollen; Quaternary; Rainfall; Terra firme forest. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000300473 Miocene fern spores and pollen grains from the Solimões Basin, Amazon Region, Brazil Acta Botanica Sá,Natália de Paula; Carvalho,Marcelo de Araújo. ABSTRACT This work documents fern spores and pollen grains (miospores) recovered from rocks of the Solimões Formation (Solimões Basin), their botanical affinities, ecology and distribution in the Miocene of the Amazon Region. The assemblage of miospores is well preserved and diverse. They are identified, illustrated and assigned to the ten families of ferns and 22 families of spermatophytes. All miospores were identified to the taxonomic level of species except for two taxa (Perinomonoletes and Podocarpidites). The families Pteridaceae and Arecaceae were most representative of ferns and spermatophytes, respectively. This work contributes to the knowledge of the paleoflora and will aid in paleoenvironmental, paleoecological and biostratigraphic... Tipo: Info:eu-repo/semantics/article Palavras-chave: Miocene; Miospores; Neogene; Palynology; Solimões; Vegetation. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400720 Registros recuperados: 2 Primeira ... 1 ... Última

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