Alcântara Formation - AbsoluteAstronomy.com

The Alcântara Formation is a geological formation in northeastern

Northeast Region, Brazil

The Northeast Region of Brazil is composed of the following states: Maranhão, Piauí, Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Sergipe and Bahia, and it represents 18.26% of the Brazilian territory....

Brazil

Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

whose strata date back to the Upper Cretaceous.

Fishes

Crocodylomorphs
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Atlanticopristis	Atlanticopristis equatorialis	Falésia do Sismito, Cajual Island	Early Cenomanian	14 specimens (two complets)	A sclerorhynchid

Crurotarsans

Crocodylomorphs
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Coringasuchus Coringasuchus Coringasuchus is a genus of mesoeucrocodylian crocodyliform, perhaps a notosuchian. It is known from fossils including cranial material discovered in rocks of the early Cenomanian-age Upper Cretaceous Alcântara Formation, Cajual Island, northeastern Brazil. Coringasuchus was described by A.W.A....	Coringasuchus anisodontis	Laje do Coringa, Cajual Island	Early Cenomanian	Partial right lower jaw (dentary)	Possible a notosuchian.

Ornithodirans

Dinosaurs
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Oxalaia Oxalaia Oxalaia is a genus of carnivorous theropod. It is a spinosaurine spinosaurid which lived during the late Cretaceous in what is now Brazil....	Oxalaia quilombensis	Laje do Coringa, Cajual Island	Cenomanian	Fused premaxillae; isolated and incomplete left maxilla	A spinosaurid

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