Earth:Marília Formation

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Marília Formation
Stratigraphic range: Maastrichtian
~70–66 Ma
TypeGeological formation
Unit ofBauru Group
OverliesUberaba Formation
Adamantina Formation
Lithology
PrimarySandstone
OtherMudstone, siltstone, limestone
Location
Coordinates [ ⚑ ] : 19°36′S 48°00′W / 19.6°S 48.0°W / -19.6; -48.0
Paleocoordinates [ ⚑ ] 23°06′S 33°54′W / 23.1°S 33.9°W / -23.1; -33.9
RegionTemplate:Country data Minas Gerais
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 Minas Gerais state of southeastern Brazil. Its strata date back to the Maastrichtian, and are part of the Bauru Group.[1]

The fossil-bearing Serra da Galga and Ponte Alta members were originally thought to belong to this formation[2] but were split off into the Serra da Galga Formation in 2020.[3]


Fossil content

Crurotarsans

Crocodylomorphs of the Marilia Formation
Genus Species Location Notes Images
Titanochampsa T. iorii A mesoeucrocodylian[4]

Ornithodirans

Dinosaurs of the Marilia Formation
Genus Species Location Stratigraphic position Material Notes Images
Kurupi K. itaata An abelisaurid[5]

See also

  • List of dinosaur-bearing rock formations

References

  1. Marília Formation at Fossilworks.org
  2. Weishampel et al., 2004, pp. 600-604
  3. Marcus Vinícius Theodoro Soares; Giorgio Basilici; Thiago da Silva Marinho; Agustín Guillermo Martinelli; André Marconato; Nigel Philip Mountney; Luca Colombera; Áquila Ferreira Mesquita et al. (2021). "Sedimentology of a distributive fluvial system: The Serra da Galga Formation, a new lithostratigraphic unit (Upper Cretaceous, Bauru Basin, Brazil)". Geological Journal 56 (2): 951–975. doi:10.1002/gj.3987. https://onlinelibrary.wiley.com/doi/abs/10.1002/gj.3987. 
  4. Fachini, T.S.; Godoy, P.L.; Marsola, J.C.A.; Montefeltro, F.C.; Langer, M.C. (2022). "A large-sized mesoeucrocodylian from the Late Cretaceous of Brazil with possible neosuchian affinities". Historical Biology: 1–14. doi:10.1080/08912963.2022.2122822. 
  5. Iori, Fabiano Vidoi; Araújo-Júnior, Hermínio Ismael de; Tavares, Sandra A. Simionato; Marinho, Thiago da Silva; Martinelli, Agustín G. (2021-09-04). "New theropod dinosaur from the late Cretaceous of Brazil improves abelisaurid diversity" (in en). Journal of South American Earth Sciences 112: 103551. doi:10.1016/j.jsames.2021.103551. ISSN 0895-9811. Bibcode2021JSAES.11203551I. https://www.sciencedirect.com/science/article/abs/pii/S0895981121003977.