Presidente Prudente Formation Explained

Presidente Prudente Formation
Type:	Geological formation
Age:	Late Campanian-Early Maastrichtian
Period:	Maastrichtian
Prilithology:	Sandstone and mudstone
Coordinates:	-22.1°N -51.4°W
Paleocoordinates:	-26.2°N -34.6°W
Unitof:	Bauru Group
Overlies:	Adamantina Formation
Extent:	Paraná Basin

The Presidente Prudente Formation is a geological formation of the Bauru Group in the Paraná Basin, located in Brazil whose strata date back to the Late Campanian to Early Maastrichtian.

History

Since at least 1953, parts of this formation, such as where the formation once outcropped along Raposo Tavares Road, have been lost to urban development.

Paleofauna

Crocodyliformes

Crocodyliformes reported from the Presidente Prudente Formation
Genus	Species	Material	Notes	Images
Pepesuchus^[1]	P. deiseae	"a nearly complete skeleton and skull"	A member of Peirosauridae
Roxochampsa^[2]	R. paulistanus		A member of Peirosauridae, previously known as "Goniopholis" paulistanus

Turtles

Turtles reported from the Presidente Prudente Formation
Genus	Species	Material	Notes	Images
Bauruemys^[3]	B. elegans	Skulls	A podocnemidid side-necked turtle
Roxochelys^[4]	R. wanderleyi		A podocnemidid side-necked turtle

Dinosaurs

Dinosaurs reported from the Presidente Prudente Formation
Genus	Species	Material	Notes	Images
Abelisauridae indet.^[5]	Indeterminate	Maxilla	Previously identified as carcharodontosaurid.
Austroposeidon^[6]	A. magnificus	"cervical, dorsal, and sacral vertebrae, along with a cervical rib and one complete dorsal vertebra"	A titanosaurian sauropod

Notes and References

1. On a new peirosaurid crocodyliform from the Upper Cretaceous, Bauru Group, southeastern Brazil. 10.1590/S0001-37652011000100020. Anais da Academia Brasileira de Ciências. 83. 317–327. 2011. Campos. Diogenes A.. Oliveira. Gustavo R.. Figueiredo. Rodrigo G.. Riff. Douglas. Azevedo. Sergio A.K.. Carvalho. Luciana B.. Kellner. Alexander W.A.. 1. 21437389. free.
2. André E. Piacentini Pinheiro . Paulo Victor Luiz Gomes da Costa Pereira . Rafael G. de Souza . Arthur S. Brum . Ricardo T. Lopes . Alessandra S. Machado . Lílian P. Bergqvist . Felipe M. Simbras . 2018 . Reassessment of the enigmatic crocodyliform "Goniopholis" paulistanus Roxo, 1936: Historical approach, systematic, and description by new materials . PLOS ONE . 13 . 8 . e0199984 . 10.1371/journal.pone.0199984 . 30067779 . 6070184 . 2018PLoSO..1399984P . free .
3. Morphometric analysis of the Upper Cretaceous brazilian side-necked turtle Bauruemys elegans (Suárez, 1969)(Pleurodira, Podocnemididae). PSR Romano, SAK Azevedo - Arquivos do Museu Nacional, 2007
4. P. S. R. Romano, G. R. Oliveira, S. A. K. Azevedo, A. W. A. Kellner, and D. Almeida Campos. 2013. New Information about Pelomedusoides (Testudines: Pleurodira) from the Cretaceous of Brazil. In D. B. Brinkman, P. A. Holroyd, J. Gardner (eds.), Morphology and Evolution of Turtles 261-275 [P. Holroyd/P. Holroyd]
5. Delcourt . Rafael . Grillo . Orlando Nelson . Reassessment of a fragmentary maxilla attributed to Carcharodontosauridae from Presidente Prudente Formation, Brazil . Cretaceous Research . 2018 . 84 . 515–524 . 10.1016/j.cretres.2017.09.008. 2018CrRes..84..515D .
6. Bandeira . K.L.N. . Medeiros Simbras . F. . Batista Machado . E. . de Almeida Campos . D. . Oliveira . G.R. . Kellner . A.W.A. . 2016 . A New Giant Titanosauria (Dinosauria: Sauropoda) from the Late Cretaceous Bauru Group, Brazil . PLOS ONE . 11 . 10. e0163373 . 10.1371/journal.pone.0163373 . 27706250 . 5051738 . 2016PLoSO..1163373B . free .