Bauru Group
The Bauru Group is a geological group of the Bauru Sub-basin, Paraná Basin in Minas Gerais, São Paulo, General Salgado, Itapecuru-Mirim, Mato Grosso, Brazil whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1]
| 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 & Presidente Prudente Formations |
| Underlies | Alluvium |
| Overlies | Caiuá Group |
| Lithology | |
| Primary | Sandstone |
| Other | Conglomerate, siltstone, mudstone, coal |
| Location | |
| Coordinates | 19.7°S 48.0°W |
| Approximate paleocoordinates | 24.4°S 29.2°W |
| Region | Minas Gerais, São Paulo, General Salgado, Itapecuru-Mirim, Mato Grosso |
| Country |  Brazil |
| Extent | Paraná Basin |
| Type section | |
| Named for | Bauru |
  Bauru Group (Brazil) | |
Subdivisions
The Bauru Group was divided by Fernandes and Coimbra (1996) in four formations, namely Adamantina, Uberaba, Araçatuba and Marília.[2] 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.[3] The Adamantina Formation was divided in Vale do Rio do Peixe, São José do Rio Preto and Presidente Prudente Formations.[3]
Vertebrate paleofauna
Molluscan paleofauna
Gastropoda
- †Physa aridi Mezzalira, 1974[4]
- †Physa mezzalirai Ghilardi, Carbonaro & Simone, 2011[5]
- †Viviparus souzai Mezzalira, 1974[4]
Bivalvia
- †Anodontites freitasi Mezzalira, 1974[4]
- †Anodontites pricei Mezzalira, 1974[4]
- †Diplodon arrudai Mezzalira, 1974[4]
- †Florenceia peiropolensis Mezzalira, 1974[4]
- †Itaimbea priscus (Ihering, 1913)[4]
- †Monocondylaea cominatoi Mezzalira, 1974[4]
- †Sancticarolis tolentinoi Mezzalira, 1974[4]
- †Taxodontites paulistanensis (Mezzalira, 1974)[4]
See also
- List of dinosaur-bearing rock formations
- Areado Group of the São Francisco Basin
- Santana Group of the Araripe Basin
References
- Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, South America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 600-604. ISBN 0-520-24209-2
- Fernandes, L.A.; Coimbra, A.M.A (1996). "Bacia Bauru (Cretáceo Superior, Brasil)". Anais da Academia Brasileira de Ciências. 68 (2): 195–205.
- Fernandes, L.A. & Coimbra, A.M. (2000a). "Revisão estratigráfica da parte oriental da Bacia Bauru (Neocretáceo)". Revista Brasileira de Geociências. 30 (4): 717–728. doi:10.25249/0375-7536.2000304717728.
- Simone, L.R.L. & Mezzalira, S. 1994. Fossil Molluscs of Brazil. Boletim do Instituto Geológico 11: 1–202.
- Ghilardi,RP; Carbonaro, FA; & Simone, LRL. 2011. Physa mezzalirai, a new cretaceous basommatophoran from Adamantina formation, Brazil. Strombus 18(1-2): 1-14. "Archived copy". Archived from the original on 2012-10-26. Retrieved 2012-07-17.CS1 maint: archived copy as title (link)
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