Bergue, C.T. and Coimbra, J.C. 2008. The faunal and geochemical approaches in the calcareous microfossils and their applications to the palaeoceanography and palaeoclimatology. Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais. 3, 2 (Aug. 2008), 115–126. DOI:https://doi.org/10.46357/bcnaturais.v3i2.680.