Edgarosaurus
Edgarosaurus was a short-necked plesiosaur that swam in the warm, shallow sea that once covered Montana. It used its long snout and sharp teeth to catch fish and other slippery prey.12
Cando viviu?
Como era de grande?
Canto medía de longo?
tan longo coma 4 cans do fociño á cola🍌tan longo coma 19 plátanos postos un tras outro🏊podería nadar o longo dunha piscina grande (50 m) en 6,2 segundosComo era de grande Edgarosaurus comparado CONTIGO?
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Que velocidade alcanzaba?
Datos curiosos
Edgarosaurus had a short neck and a long snout, unlike the long-necked plesiosaurs like Elasmosaurus.1
Its skull is one of the oldest and best-preserved plesiosaur skulls from the Cretaceous of North America.1
Edgarosaurus had 26 neck bones, which is more than some other short-necked plesiosaurs like Dolichorhynchops (which had 19).2
It had a small opening in the top of its skull called a pineal foramen, which some other plesiosaurs lacked.2
The only known fossil of Edgarosaurus was found in the Thermopolis Shale, which was once the bottom of the Western Interior Seaway.1
Edgarosaurus lived about 106 to 94 million years ago, during the Late Cretaceous period.2

Para expertos en dinos
- Nome científico
- Edgarosaurus
- Bautizado por
- Druckenmiller 20023
- Grupo
- Plesiosauros
- Familia / clado
- Polycotylidae3
- Clasificación
- Plesiosauria > Sauropterygia3
- Idade das rochas
- de 106 a 94 millóns de anos (Albian / Cenomanian)3
- Formacións rochosas
- Thermopolis Shale3
- Países
- EUA3
- Rexistros fósiles
- 1 na Paleobiology Database3
- Descubrimento
- Edgarosaurus was named by Pat S. Druckenmiller in 2002, based on a partial skeleton found in Montana. The type specimen includes a complete skull, many vertebrae, and a forelimb.13
- Aínda en debate
- Scientists are not sure exactly how Edgarosaurus is related to other plesiosaurs. Some place it in the group Polycotylidae, but its exact family tree is still debated.1
De onde veñen os datos
- Osteology of a new plesiosaur from the lower Cretaceous (Albian) Thermopolis Shale of Montana (tandfonline.com)
- PBDB Taxon (paleobiodb.org)
- Edgarosaurus in The Paleobiology Database (CC BY 4.0): idade, lugares, formacións rochosas, clasificación.
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