TAXONOMIC REAPPRAISAL OF FOSSIL WOODS FROM IRATI AND SERRA ALTA FORMATIONS, PERMIAN, PARANÁ BASIN, BRAZIL

Abstract

Based on bibliographic and taxonomic revision of fossil woods from the Upper Permian of Paraná Basin, Brazil, three new combinations, Myelontordoxylon camposii (Mussa), Abietopitys articulata (Dohms) and Paulistoxylon iratiensis (Guerra-Sommer), are proposed and one species, Polysolenoxylon bortoluzzii Guerra, is considered invalid. Except for M. camposii, originated from the levels of Irati Formation in the State of São Paulo, all others came from the Serra Alta Formation in the State of Rio Grande do Sul. Based on the new combinations, amendments to the generic diagnosis of Myelontordoxylon Mussa and Abietopitys Kräusel and to the specific diagnosis of A. articulata (Dohms) are presented.