Marília Formation

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]

Marília Formation Stratigraphic range: Maastrichtian ~70–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Unit of	Bauru Group
Overlies	Uberaba Formation
Lithology
Primary	Sandstone
Other	Mudstone, siltstone, limestone
Location
Coordinates	19.6°S 48.0°W / -19.6; -48.0
Approximate paleocoordinates	23.1°S 33.9°W / -23.1; -33.9
Region	Goiás  Minas Gerais  São Paulo
Country	Brazil
Extent	Bauru Sub-basin, Paraná Basin
Type section
Named for	Marília
Marília Formation (Brazil)

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

• List of dinosaur-bearing rock formations

References

1. Marília Formation at Fossilworks.org
2. Weishampel et al., 2004, pp. 600-604
3. 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. 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. 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. 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