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Marília Formation

Coordinates: 19°36′S 48°00′W / 19.6°S 48.0°W / -19.6; -48.0
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Marília Formation
Stratigraphic range: Maastrichtian
~70–66 Ma
↓
TypeGeological formation
Unit ofBauru Group
OverliesUberaba Formation
Lithology
PrimarySandstone
OtherMudstone, siltstone, limestone
Location
Coordinates19°36′S 48°00′W / 19.6°S 48.0°W / -19.6; -48.0
Approximate paleocoordinates23°06′S 33°54′W / 23.1°S 33.9°W / -23.1; -33.9
Region Goiás
 Minas Gerais
 São Paulo
Country Brazil
ExtentBauru Sub-basin, Paraná Basin
Type section
Named forMarília
Marília Formation is located in Brazil
Marília Formation
Marília Formation (Brazil)

The Marília Formation is a geological formation in Goiás, Minas Gerais, and São Paulo states of southeastern Brazil. Its strata date back to the Maastrichtian, and are part of the Bauru Group.[1]

Dinosaur remains are among the fossils that have been recovered from the formation.[2]

Fossil content

Crurotarsans

Crocodylomorphs of the Marilia Formation
Genus Species Location Notes Images
Itasuchus I. jesuinoi Area 2 Basal notosuchian[3]
Labidiosuchus L. amicum Serra do Veadinho, Area 2 A notosuchian with bizarre dentition[4]
Peirosaurus P. torminni Area 2 A peirosaurid[3]
Uberabasuchus U. terrificus Serra do Veadinho, Area 2 A peirosaurid[3]

Ornithodirans

Three distinct titanosaurids denoted as forms A, B, and C have been found in Area 4.[3] Titanosaurine remains are known from Areas 1 and 2.[3] Indeterminate theropod remains known from Area 1.[3] Indeterminate maniraptor remains known from Area 1.[3] Indeterminate abelisaurid remains are known from Areas 1 and 2.[3] Indeterminate Carcharodontosaurid remains are known from Area 1.[3]

Dinosaurs of the Marilia Formation
Genus Species Location Stratigraphic position Material Notes Images
Aeolosaurus Indeterminate A titanosaurian[3]
Baurutitan B. britoi Area 1 A titanosaurian[3]
Titanosaurus Indeterminate Area 1 A titanosaurian[3]
Trigonosaurus T. pricei Area 1 A titanosaurian[3]
Uberabatitan[5] U. ribeiroi A titanosaurian[3]

See also

References

  1. ^ Marília Formation at Fossilworks.org
  2. ^ Weishampel et al., 2004, pp. 600-604
  3. ^ a b c d e f g h i j k l m n Candeiro, 2009
  4. ^ Kellner et al., 2011
  5. ^ Salgado & De Carvalho, 2008

Bibliography

  • Candeiro, C.R.A. 2009. Vertebrates of the Marília Formation (late Maastrichtian) from the Peirópolis paleontological site: Toward a better understanding. Earth Sciences Research Journal 13(1). 6–15. Accessed 2019-02-16.
  • Kellner, Alexander W.A.; Rodrigo G. Figueiredo; Sergio A.K. Azevedo, and Diogenes A. Campos. 2011. A new cretaceous notosuchian (Mesoeucrocodylia) with bizarre dentition from Brazil. Zoological Journal of the Linnean Society 163(s1). S109–S115. Accessed 2019-02-16.
  • Salgado, Leonardo, and Ismar de Souza De Carvalho. 2008. Uberabatitan ribeiroi, a new titanosaur from the Marília Formation (Bauru Group, Upper Cretaceous), Minas Gerais, Brazil. Palaeontology 51(4). 881–901. Accessed 2019-02-16.
  • Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2
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