Sommerxylon spiralosus from Upper Triassic in southernmost Paraná Basin (Brazil): a new taxon with taxacean affinity

by Etiene F. Pires, Margot Guerra-Sommer
Published 2004-09-01

Growth ring analysis of fossil coniferous woods from early cretaceous of Araripe Basin (Brazil)

by Etiene F. Pires, Margot Guerra-Sommer
Published 2011-06-01

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
Published 2014-09-01