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New fossils from an underexplored region of the Adamantina Formation (Bauru Group, Upper Cretaceous) from Auriflama-SP: evolutive and paleoecological implications

Grant number: 18/13118-3
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): March 01, 2019
Effective date (End): February 28, 2021
Field of knowledge:Biological Sciences - Zoology - Paleozoology
Principal researcher:Felipe Chinaglia Montefeltro
Grantee:Rodrigo Castilho Freitas
Home Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil
Associated research grant:14/03825-3 - The origin and rise of dinosaurs in Gondwana (late Triassic - early Jurassic), AP.TEM

Abstract

The project proposes the study of the fossils from a new outcrop in the municipality of Auriflama - SP. The outcrop is attributed to Adamantina Formation which is the most extensive subunit of the Bauru Group (Bauru Basin, Upper Cretaceous). The Adamantina Formation is one of the most relevant deposits for the Upper Cretaceous due to its abundance of fossils and the great variety of taxa. The new outcrop lies in a region between the São José dos Dourados and Tietê rivers and has so far provided disarticulated, fragmented elements and materials of small size (macroinvertebrates). The microvertebrate materials are important because even considered of high taxonomic value, these elements have been neglected in previous collections in this formation. Based on the materials already collected, the outcrop presents a good prospect to provide new materials of rare taxa and to expand taxonomic diversity to the Adamantina Formation, and possibly to the Bauru Group. The collected fossils from the new locality will be prepared, identified and compared, to understand their paleontological implications. Some of the materials already collected are common in the Adamantina Formation, while others, such as Anura are scarce in the Bauru Group. The fossils will be identified based on information from the literature, the help of experts and visit to scientific collections. The implications of the new findings will be discussed at different levels from the regional context to the Upper Cretaceous worldwide. The results obtained will be published in scientific meetings, and submitted as manuscripts to a peer-review journal. In addition, the results will be used for public engagements.