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 ~ | |
| 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 |
| Approximate paleocoordinates | 23.1°S 33.9°W |
| 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[3] | Indeterminate | A titanosaurian[3] |  | |||
| Baurutitan | B. britoi | Area 1 | A titanosaurian[3] | |||
| Kurupi | K. itaata | An abelisaurid[5] | ||||
| "Lopasaurus"[6] | None given | A dromaeosaur. The holotype went missing shortly after 1980 and it has not been recovered since[6] | ||||
| Trigonosaurus | T. pricei | Area 1 | A titanosaurian[3] | |||
| Uberabatitan[7] | U. ribeiroi | A titanosaurian[3] | ||||
| Ypupiara[6] | Y. lopai | A dromeosaur[6] | ||||
References
- Marília Formation at Fossilworks.org
- Weishampel et al., 2004, pp. 600-604
- Candeiro, 2009
- Kellner et al., 2011
- "New theropod dinosaur from the late Cretaceous of Brazil improves abelisaurid diversity". Journal of South American Earth Sciences: 103551. 2021-09-04. doi:10.1016/j.jsames.2021.103551. ISSN 0895-9811.
- Brum, Arthur Souza, Pêgas, Rodrigo Vargas, Bandeira, Kamila Luisa Nogueira, Souza, Lucy Gomes de, Campos, Diogenes de Almeida, & Kellner, Alexander Wilhelm Armin (2021). "A new unenlagiine (Theropoda, Dromaeosauridae) from the Upper Cretaceous of Brazil". Papers in Palaeontology. doi:10.1002/spp2.1375.
{{cite journal}}: CS1 maint: uses authors parameter (link) - Salgado & De Carvalho, 2008
Bibliography
- . 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.
- ; ; , and . 2011. A new cretaceous notosuchian (Mesoeucrocodylia) with bizarre dentition from Brazil. Zoological Journal of the Linnean Society 163. S109–S115. Accessed 2019-02-16.
- , and . 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.
- ; , and . 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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