Acritarchs and Tasmanites from the Permo-Carboniferous beds of the Paraná Basin

Abstract

Reworked Devonian palynomorphs are commonly found in Permo-Carboniferous sediments of the Paraná Basin. The present study documents in situ Permo-Carboniferous acritarchs and Tasmanites. The low abundance and taxonomic diversity of these palynomorphs are possibly related to shallow marine conditions. Three species, Comasphaeridium daemoni, Dictyotidium souzae and Micrhystridium toigae, are described as new. Spores and pollen from the Carboniferous and Permian of the Paraná Basin, occurs associated to these acritarchs.