Rayoso Formation
Encyclopedia
The Rayoso Formation is a geological formation in the Neuquén Province
of Argentina
whose strata date back to the Aptian
stage of the Early Cretaceous
. Dinosaur remains are among the fossils that have been recovered from the formation.
remains located in Provincia de Neuquén, Argentina.
Neuquén Province
Neuquén is a province of Argentina, located in the west of the country, at the northern end of Patagonia. It borders Mendoza Province to the north, Rio Negro Province to the southeast, and Chile to the west...
of Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...
whose strata date back to the Aptian
Aptian
The Aptian is an age in the geologic timescale or a stage in the stratigraphic column. It is a subdivision of the Early or Lower Cretaceous epoch or series and encompasses the time from 125.0 ± 1.0 Ma to 112.0 ± 1.0 Ma , approximately...
stage of the Early Cretaceous
Early Cretaceous
The Early Cretaceous or the Lower Cretaceous , is the earlier or lower of the two major divisions of the Cretaceous...
. Dinosaur remains are among the fossils that have been recovered from the formation.
Vertebrate paleofauna
Indeterminate CeratosauriaCeratosauria
Ceratosaurs are members of a group of theropod dinosaurs defined as all theropods sharing a more recent common ancestry with Ceratosaurus than with birds. There is presently no universally agreed upon listing of species or diagnostic characters of Ceratosauria, though they were less derived...
remains located in Provincia de Neuquén, Argentina.
| Dinosaur Dinosaur Dinosaurs are a diverse group of animals of the clade and superorder Dinosauria. They were the dominant terrestrial vertebrates for over 160 million years, from the late Triassic period until the end of the Cretaceous , when the Cretaceous–Paleogene extinction event led to the extinction of... s of the Rayoso Formation |
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| Genus | Species | Presence | Notes | Images |
Rayososaurus Rayososaurus Rayososaurus is a genus of plant-eating sauropod dinosaur of the superfamily Diplodocoidea. It was found in the Rayoso Formation, in Patagonia, Argentina and lived about 99 million years ago . The type species is R... |
R. agrioensis |
Geographically located in Provincia de Neuquén, Argentina. |
"Left scapula, distal end of right scapula, partial left femur, proximal part of left fibula, partial skull and skeleton, plus at least [three] other individuals." |
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