Rayoso Formation | |
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Stratigraphic range: Aptian-Albian, ~ | |
Type | Geological formation |
Unit of | Huitrín-Rayoso Group |
Sub-units | Pichi Neuquén Member |
Underlies | Lohan Cura & Carrín Cura Formations |
Overlies | La Amarga & Huitrín Formations |
Thickness | up to 604 m (1,982 ft) |
Lithology | |
Primary | Sandstone |
Location | |
Coordinates | 38°24′S 69°54′W / 38.4°S 69.9°W |
Approximate paleocoordinates | 40°06′S 37°30′W / 40.1°S 37.5°W |
Region | Neuquén Province |
Country | Argentina |
Extent | Neuquén Basin |
The Rayoso Formation is a geological formation in the Neuquén Province of Argentina whose strata date back to the Aptian-Albian stages of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1]
The formation has a maximum thickness of 604 metres (1,982 ft) and has one member, the Pichi Neuquén Member. The unit comprises sandstones deposited in a lacustrine environment.[2]
Indeterminate ceratosaurian remains located in Neuquén Province, Argentina.[1]
Dinosaurs of the Rayoso Formation | ||||
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Genus | Species | Presence | Notes | Images |
Ceratosauria indet. | Indeterminate | Neuquén Province | ||
Lavocatisaurus | L. agrioensis | Neuquén Province | Specimens representing several individuals at one site, including two juveniles and an adult |