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17.003  Articles
1 of 1.701 pages  |  10  records  |  more records»
The present research is an analysis of Cordaitanthales leaves from “Tonstein” associated to a coal seam in Jazida do Faxinal (Rio Bonito Formation, State of Rio Grande do Sul, Brazil). taphocenosis preserved as coalified compression, is primarily composed... see more

Several ichnocoenosis from varved shales of the Itararé Group, Rio Grande do Sul State, previously describe by GUERRA-SOMMER et all (1984), GUERRA-SOMMER et all (1985) and DIAS-FABRÍCIO et all (1985) are registred. The association consist mainly of traces... see more

Um plano lenhoso, com estrutura primária preservada, referente a Lebachiaceae, é registrado nas camadas do Gondwana sul-brasileiro (Formação Irati, RS); Scleromedulloxylon batoviense GUERRA 1976 é aqui descrito. Problemas nomenclaturais referentes a Tylod... see more

Organic matter preserved in continental deposits is an excellent archive of environmental and climate change, and various research tools are commonly used to access this information. The present study is the result of a study conducted in continental envi... see more

Sedimentary features in eolian sandstones with plane-parallel lamination of the Botucatu Formation, situated in a quarry in Novo Hamburgo (RS), southern Brazil, were preciously interpreted as possible plant imprints. They show very variable shapes, compri... see more

The study of an assemblage of in situ stumps of arborescents lycopods casts in a coaly sedimentary sequence in Permian (Artinskian – Kungurian) of south brazilian Gondwana, allowed to infer a higromesofilous habita for these plants. The absence of stigmar... see more

A Triassic taphoflora identified in the Central Region of the State of Rio Grande do Sul, southern Brazil, represents an important biostratigraphic stage in the paleofloristic succession of the Paraná Basin. This megafloristic association is composed of c... see more

São detalhadas as características das estruturas reprodutivas de Equisetopsida procedentes de um nível pelítico associado a uma camada de carvão na área de Pântano Grande (Folha de Quitéria, Formação Rio Bonito, Artinskiano/Kunguriano) no Estado do Rio Gr... see more

Compressões foliares com bordos danificados são comuns em uma tafocenose formada predominantemente por folhas, procedente de um nível de argilito intermediário a uma camada de carvão na Jazida do Faxinal (Município de Arroio dos Ratos, RS, Formação Rio Bo... see more

1 of 1.701 pages  |  10  records  |  more records»