Goio-Erê Formation

The Goio-Erê Formation is a geological formation in Brazil. It is sometimes thought to be deposited between the Turonian and Campanian stages of the Late Cretaceous,^[1] but an Aptian-Albian date has also been proposed.^[2][3] It primarily consists of sandstone and was deposited in a desert environment. It is known for its exceptional 3-D preservation of fossils at the Cemitério dos Pterossauros ("Pterosaur Graveyard") Quarry, located in the municipality of Cruzeiro do Oeste.^[2][3] Animals recovered from this site include the pterosaurs Keresdrakon, Caiuajara and Torukjara, the dinosaurs Berthasaura and Vespersaurus, and the iguanian lizard Gueragama. A few studies have alternatively assigned the Cemitério dos Pterossauros site to the younger Rio Paraná Formation, however.^[4][5]

Goio-Erê Formation
Stratigraphic range: Aptian-Campanian? ~125–71 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Caiuá Group (Bauru Basin)
Underlies	Alluvium
Overlies	Unconformity with Lower Cretaceous rocks
Lithology
Primary	Sandstone
Location
Coordinates	23.8°S 53.1°W / -23.8; -53.1
Approximate paleocoordinates	28.9°S 32.7°W / -28.9; -32.7
Country	Brazil
Extent	Bauru Sub-basin, Paraná Basin
Goio-Erê Formation (Brazil)

Fossil content

Dinosaurs

Dinosaurs from the Goio-Erê Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Berthasaura	B. leopoldinae[3]	Cemitério dos Pterossauros Quarry			A berthasaurid ceratosaur.
Vespersaurus	V. paranaensis[4]	Cemitério dos Pterossauros Quarry			A noasaurid ceratosaur.

Pterosaurs

Pterosaurs from the Goio-Erê Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Caiuajara	C. dobruskii[1]	Cemitério dos Pterossauros Quarry			A tapejarid pterosaur.
Keresdrakon	K. vilsoni[2]	Cemitério dos Pterossauros Quarry			An azhdarchoid pterosaur.
Torukjara	T. bandeirae[6]	Cemitério dos Pterossauros Quarry			A tapejarid pterosaur.

Squamates

Squamates from the Goio-Erê Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Gueragama	G. sulamericana[7]	Cemitério dos Pterossauros Quarry		Jaw fragments	An iguanian lizard.