Marília Formation

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]

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 Adamantina 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	Minas Gerais
Country	Brazil
Extent	Bauru Sub-basin, Paraná Basin
Type section
Named for	Marília
Marília Formation (Brazil)

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]

Turtles

Turtles of the Marilia Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Cambaremys	C. langertoni				A podocnemidoid turtle
Peiropemys	P. mezzalirai				A peiropemymid turtle
Pricemys	P. caiera				A peiroperymid turtle

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; Julia Tucker Vasques; Francisco Romero Abrantes Junior; Luiz Carlos Borges Ribeiro (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. S2CID 224928245.
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. 35 (10): 1–14. doi:10.1080/08912963.2022.2122822. S2CID 252572878.
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". Journal of South American Earth Sciences. 112: 103551. Bibcode:2021JSAES.11203551I. doi:10.1016/j.jsames.2021.103551. ISSN 0895-9811. S2CID 239682640.