Chubutinectes
Chubutinectes was a long-necked marine reptile that swam in warm, shallow seas near what is now Argentina. It was not a dinosaur, but a plesiosaur, a type of ocean predator with flippers like a sea turtle.21
Cando viviu?
Que velocidade alcanzaba?
Datos curiosos
Chubutinectes lived about 67 million years ago, near the very end of the Age of Dinosaurs.1
It is one of the few plesiosaurs from the Southern Hemisphere whose skeleton after the head is well known.1
Its bones were found in the La Colonia Formation, which was once a warm, shallow sea with limited water flow.1
Scientists used tiny fossils called microfossils to figure out how old the rocks were where Chubutinectes was found.1
Chubutinectes had a special bone in its shoulder called a coracoid with a heart-shaped hole, which helped scientists tell it apart from other plesiosaurs.1
Its arm bone, the humerus, had a back part that ended in an extra bump, a unique feature.1

Para expertos en dinos
- Nome científico
- Chubutinectes
- Bautizado por
- O'Gorman et al. 20232
- Grupo
- Plesiosauros
- Familia / clado
- Elasmosauridae2
- Clasificación
- Plesiosauria > Elasmosauridae > Sauropterygia2
- Idade das rochas
- de 72 a 66 millóns de anos (Maastrichtian)2
- Formacións rochosas
- La Colonia2
- Países
- Arxentina2
- Rexistros fósiles
- 1 na Paleobiology Database2
- Descubrimento
- Chubutinectes was named in 2023 by paleontologist Jose Patricio O'Gorman and his team. The only known skeleton was collected from the La Colonia Formation in Chubut Province, Argentina.21
- Aínda en debate
- Scientists are still debating exactly how Chubutinectes is related to other plesiosaurs, especially the Weddellonectia group.1
De onde veñen os datos
- A new elasmosaurid (Sauropterygia, Plesiosauria) from the upper levels of the La Colonia Formation (upper Maastrichtian), Chubut Province, Argentina (ri.conicet.gov.ar)
- Chubutinectes in The Paleobiology Database (CC BY 4.0): idade, lugares, formacións rochosas, clasificación.
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