| Bauru Group | |
|---|---|
| Stratigraphic range:Late Cretaceous (Coniacian-Maastrichtian) ~89–66 Ma | |
| Type | Group |
| Unit of | Bauru Sub-basin |
| Sub-units | Araçatuba,Adamantina,Uberaba,Marília,Vale do Rio do Peixe,Cambambe,São José do Rio Preto andPresidente Prudente Formations |
| Underlies | Alluvium |
| Overlies | Caiuá Group |
| Lithology | |
| Primary | Sandstone |
| Other | Conglomerate,siltstone,mudstone,coal |
| Location | |
| Coordinates | 19°42′S48°00′W / 19.7°S 48.0°W /-19.7; -48.0 |
| Approximate paleocoordinates | 24°24′S29°12′W / 24.4°S 29.2°W /-24.4; -29.2 |
| Region | Minas Gerais,São Paulo,General Salgado,Itapecuru-Mirim,Mato Grosso |
| Country | Brazil |
| Extent | Paraná Basin |
| Type section | |
| Named for | Bauru |
  Bauru Group (Brazil) | |
TheBauru Group is a geologicalgroup of the Bauru Sub-basin,Paraná Basin inMinas Gerais,São Paulo,General Salgado, Itapecuru-Mirim,Mato Grosso,Brazil whose strata date back to theLate Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1]
According to a 2016 study:[2]
The Bauru Basin covers an area of approximately 379.362 km2 located almost exclusively in Brazil.., with selected outcrops in Northeastern Paraguay (Fúlfaro, 1996). This Cretaceous sedimentary succession reflects changing nonmarine environments, such as eolian, lacustrine, fluvial and alluvial fans.
The Bauru Group was divided by Fernandes and Coimbra (1996) in four formations, namelyAdamantina,Uberaba,Araçatuba andMarília.[3] In 1998, Fernandes revised the group and recognize six formations, Uberaba,Vale do Rio do Peixe,Araçatuba,São José do Rio Preto,Presidente Prudente and Marília.[4] The Adamantina Formation was divided inVale do Rio do Peixe,São José do Rio Preto andPresidente Prudente Formations.[4]
The fossil record indicates that sediment accumulated from the Cenomanian to early Paleocene, beginning after the Mochica Phase of the Andean orogeny.
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