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
TypeGroup
Unit ofBauru Sub-basin
Sub-unitsAraçatuba, Adamantina, Uberaba, Marília, Vale do Rio do Peixe, Cambambe, São José do Rio Preto & Presidente Prudente Formations
UnderliesAlluvium
OverliesCaiuá Group
Lithology
PrimarySandstone
OtherConglomerate, siltstone, mudstone, coal
Location
Coordinates19.7°S 48.0°W / -19.7; -48.0
Approximate paleocoordinates24.4°S 29.2°W / -24.4; -29.2
RegionMinas Gerais, São Paulo, General Salgado, Itapecuru-Mirim, Mato Grosso
Country Brazil
ExtentParaná Basin
Type section
Named forBauru
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

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

References

  1. 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
  2. Fernandes, L.A.; Coimbra, A.M.A (1996). "Bacia Bauru (Cretáceo Superior, Brasil)". Anais da Academia Brasileira de Ciências. 68 (2): 195–205.
  3. 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.
  4. Simone, L.R.L. & Mezzalira, S. 1994. Fossil Molluscs of Brazil. Boletim do Instituto Geológico 11: 1–202.
  5. 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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