Aspectos paleoclimaticos refletidos em espécimes lenhosos gondwanicos do Brasil

Abstract

This paper presents a study of anatomic features of fossil gymnospermous woods from the Gondwana of Brazil, which reflect paleoclimatic dominant conditions, on the basis of the average of annual and mean sensitivity expressed on the wood-growth development. The woods are related to the coal flora and were collected in outcrops of the Rio Bonito Formation bellow the main coal measures, Permian of the Parana Basin, Santa Catarina State, south of Brazil.