Look up · dinosaur 69 of 1,425
long-neck giant
Amazonsaurus
Say it like this: “AM-uh-zuhn-SOR-uhs”
Amazonsaurus maranhensis
Amazonsaurus ate plants and walked on four legs. It lived in the Early Cretaceous. Bones have been found in Brazil.
- When
- Early Cretaceous (Aptian · Albian) · roughly 121.4 to 100.5 million years ago
- Named in
- 2003 · Carvalho, I. D. S.; Avilla, L. D. S.; Salgado, L.
- Hip height
- Not established
- Length
- 12 m · 39 ft
- Weight
- 5 tonnes
- Found in
- Brazil · Itapecuru
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Rebbachisauridae
The story in short
The genus Amazonsaurus dates to 2003, the year I. D. S. Carvalho and colleagues described it. The name means “amazon lizard.”
It lived in the Early Cretaceous (Aptian · Albian), roughly 121.4 to 100.5 million years ago. Finds come from Brazil, including the Itapecuru Formation. It was a herbivore and walked on four legs.
Published estimates put Amazonsaurus at a length near 12 m and a body mass around 5 tonnes.
On the family tree it sits in Rebbachisauridae, among the sauropod dinosaurs.
Close relatives
Agustinia
Agustinia ligabuei
Early Cretaceous (Albian) · roughly 113.2 to 100.5 million years ago
Astigmasaura
Astigmasaura genuflexa
Late Cretaceous (Cenomanian · Turonian) · roughly 100.5 to 89.8 million years ago
Campananeyen
Campananeyen fragilissimus
Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago