Paleoclimatic reconstruction the brazilian cretaceous based on palynological data

Abstract

The Cretaceous is probably the best represented period of the Brazilian Phanerozoic. Palynological data for this interval, however, are very het erogeneous, and derived almost completely from the coastal basins. On the basis of these data, the present work reconstructs the Cretaceous climatic record. The paper is divided into two principal parts, the first one corresponding to a brief analysis of the paleoclimatic value of some plant groups present in the period, and the second representing an evaluation of the significance (abundance, diversity) of the same groups in Brazil.