The Goio-Erê Formation is a geological formation in

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

. It is sometimes thought to be deposited between the

Turonian The Turonian is, in the ICS' geologic timescale, the second age in the Late Cretaceous Epoch, or a stage in the Upper Cretaceous Series. It spans the time between 93.9 ± 0.8 Ma and 89.8 ± 1 Ma (million years ago). The Turonian is preceded b ...

and

Campanian The Campanian is the fifth of six ages of the Late Cretaceous Epoch on the geologic timescale of the International Commission on Stratigraphy (ICS). In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous Series. Campani ...

stages of the

Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', ...

, but an Aptian-

Albian The Albian is both an age of the geologic timescale and a stage in the stratigraphic column. It is the youngest or uppermost subdivision of the Early/Lower Cretaceous Epoch/ Series. Its approximate time range is 113.0 ± 1.0 Ma to 100.5 ± 0 ...

date has also been proposed. It primarily consists of

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates ...

and was deposited in a desert environment. It is known for its exceptional 3-D preservation of fossils, which include those of the pterosaurs ''

Keresdrakon ''Keresdrakon'' is an extinct genus of tapejaromorph pterosaur from the Goio-Erê Formation of Brazil, which dates back to the Late Cretaceous period (Turonian-Campanian stages), 94 to 71 million years ago. ''Keresdrakon'' contains a single spe ...

'' and ''

Caiuajara ''Caiuajara'' is an extinct genus of tapejarid pterosaur from the Late Cretaceous period ( Santonian stage) of Brazil. It is known from a single type species, ''Caiuajara dobruskii''. Discovery and naming In 1971, the labourers Alexandre Dobr ...

'', the dinosaur ''

Berthasaura ''Berthasaura'' (meaning "Bertha's lizard") is a genus of noasaurid ceratosaurian theropod dinosaur from the Cretaceous Goio-Erê Formation of Paraná, Brazil. The type and only species is ''Berthasaura leopoldinae''. Discovery and naming Betw ...

'' as well as the iguanian lizard ''

Gueragama ''Gueragama'' is an extinct genus of iguanian lizard from the Late Cretaceous of Brazil. It belongs to a group of iguanians called Acrodonta, whose living members include chameleons and agamids and are currently restricted to the Old World. ' ...

.'' It is laterally equivalent to the Rio Paraná Formation.

References

Geologic formations of Brazil Upper Cretaceous Series of South America Cretaceous Brazil Campanian Stage Coniacian Stage Santonian Stage Turonian Stage Sandstone formations Fossiliferous stratigraphic units of South America Paleontology in Brazil Paraná Basin {{geologic-formation-stub