Evolution of ichnological knowledge in the Furnas Formation of Parecis and Paraná basins, Brazil
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Abstract
Ichnology provides detailed information on the environmental parameters involved during deposition, serving as a basis for paleoenvironmental interpretations. To this end, ichnological analyses focus on the behavioral aspects represented by ichnoassociations, providing details of the interaction between organisms and the abiotic environment. Ichnological studies in the deposits of the Furnas Formation have been recorded since the early twentieth century, mentioning the presence of "worm tubes". The lack of body fossils and microfossils, except for the top of the formation and the lithological uniformity, has led to extensive discussions about its depositional origin. The palaeodepositional scenario of the Furnas Formation has been highlighted by the recognition of trace fossils, proposing a shallow marine setting for the unit. This review study aims to analysis the evolution of ichnological knowledge and its applicability to paleoenvironmental characterization in the deposits of the Furnas Formation in the Parecis and Paraná basins, Brazil, based on a review of the studies that proposed depositional scenarios for the unit.
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