Amazonsaurus
Amazonsaurus was a long-necked, plant-eating dinosaur that lived in what is now Brazil. It walked on four legs and had a long tail, but it was smaller than many of its giant cousins.1
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Fun facts
Amazonsaurus is the only dinosaur that has been given a full scientific name from the Itapecuru Formation in Brazil.1
It lived during the Early Cretaceous period, about 125 to 100 million years ago.1
The fossils were found in rocks that were once a floodplain near a river delta.1
Amazonsaurus belonged to a group of sauropods called diplodocoids, which includes some of the longest dinosaurs ever.1
Scientists think Amazonsaurus was about 12 meters (40 feet) long and weighed around 5,000 kilograms (11,000 pounds).1
The name Amazonsaurus comes from the Amazon region where it was found, and the Greek word for lizard.1
Most asked questions about Amazonsaurus
?How big was Amazonsaurus?
Amazonsaurus was about 10 to 12 metres long and weighed around 5,000 kilograms. That is about as long as a school bus but smaller than many other sauropods.1
?What did Amazonsaurus eat?
Amazonsaurus was a herbivore, meaning it ate plants. It used its long neck to reach leaves and ferns.1
?When did Amazonsaurus live?
Amazonsaurus lived during the Early Cretaceous Period, about 125 to 100 million years ago.1
?Where was Amazonsaurus found?
Amazonsaurus fossils were found in the Itapecuru Formation in Maranhão, Brazil, in the Amazon region.1
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For dino experts
- Scientific name
- Amazonsaurus
- Named by
- Carvalho et al. 20034
- Group
- Long-necks
- Family / clade
- Rebbachisauridae4
- Classification
- Sauropodomorpha > Sauropoda > Diplodocoidea4
- Age of the rocks
- 120 to 106 million years (Aptian / Albian)4
- Rock formations
- Itapecuru4
- Countries
- Brazil4
- Fossil records
- 1 in the Paleobiology Database4
- Discovery
- Amazonsaurus was named in 2003 by Brazilian paleontologists Ismar de Souza Carvalho and Leonardo dos Santos Avilla, and Argentine paleontologist Leonardo Salgado. The fossils were found in the Itapecuru Formation in Maranhão, Brazil.12
- Still debated
- Scientists are not sure exactly how big Amazonsaurus grew, because only a few bones have been found.1
Where the facts come from
- Amazonsaurus (en.wikipedia.org)
- doi:10.1016/S0195-6671(03)00089-2 (igeo.ufrj.br)
- Amazonsaurus | Part of the Sauropod Family of Dinosaurs (dinosaurmadness.com)
- Amazonsaurus in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.
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