Análise paleoecológica da Formação Serra da Galga, Bacia Bauru (Maastrichtiano), Uberaba (MG)

Abstract

Paleoecology aims to understand past ecosystems by approaching the reconstruction of the past and the interactions of organisms with the environment (biotic and abiotic) in a comparative context between current ecosystems. In this sense, the Paleontological site of Peirópolis (Uberaba, MG) presents an abundant fossil record that includes vertebrates, invertebrates and trace fossils, recorded in several outcrops. Part of this diversity is represented by groups preserved in the Serra da Galga Formation. Thus, understanding the ecological aspects of the fossil organisms of the Serra da Galga Formation can increase the evidence of ecosystem dynamics (abiotic and biotic) in the region. Therefore, the present work aims to understand the ecological relationships of the Serra da Galga Formation, from the description of the paleoecology, using interpretive evidence, based on the fossils identified and described so far for the unit. Therefore, a diversity distributed between gastropods, bivalves, osteichtes, anurans, chelonians, lizards, crocodyliforms, dinosaurs (theropods and sauropods) and trace fossils was evidenced. These groups lived associated with the environment formed by a distributive fluvial system, hot, dry climate with flash floods. Therefore, they used resources associated with liminine and terrestrial regions, associated with foraging behavior, reproduction and ontogeny.