The Marília Formation is a geological

formation Formation may refer to: Linguistics * Back-formation, the process of creating a new lexeme by removing or affixes * Word formation, the creation of a new word by adding affixes Mathematics and science * Cave formation or speleothem, a secondary ...

Minas Gerais Minas Gerais () is a state in Southeastern Brazil. It ranks as the second most populous, the third by gross domestic product (GDP), and the fourth largest by area in the country. The state's capital and largest city, Belo Horizonte (literall ...

state of

southeastern Brazil The Southeast Region of Brazil ( pt, Região Sudeste do Brasil; ) is composed of the states of Espírito Santo, Minas Gerais, Rio de Janeiro and São Paulo. It is the richest region of the country, responsible for approximately 60% of the Brazilian ...

. Its strata date back to the

Maastrichtian The Maastrichtian () is, in the ICS geologic timescale, the latest age (uppermost stage) of the Late Cretaceous Epoch or Upper Cretaceous Series, the Cretaceous Period or System, and of the Mesozoic Era or Erathem. It spanned the interv ...

, and are part of the Bauru Group. The fossil-bearing Serra da Galga and Ponte Alta members were originally thought to belong to this formationWeishampel et al., 2004, pp. 600-604 but were split off into the Serra da Galga Formation in 2020.

Fossil content

Crurotarsans

Ornithodirans

References

{{DEFAULTSORT:Marilia Formation Geologic formations of Brazil Cretaceous Brazil Sandstone formations Mudstone formations Siltstone formations Limestone formations Fluvial deposits Lacustrine deposits Cretaceous paleontological sites of South America Paleontology in Brazil Landforms of Minas Gerais

Fossil content

Crurotarsans

Ornithodirans

See also

References