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long-neck giant
Austroposeidon
Say it like this: “Oss-tro-puh-SIGH-don”
Austroposeidon magnificus
Austroposeidon ate plants and walked on four legs. It lived in the Late Cretaceous. Bones have been found in Brazil.
- When
- Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago
- Named in
- 2016 · Bandeira, K. L. N.; Medeiros Simbras, F.; Batista Machado, E.; de Almeida Campos, D.; Oliveira, G. R.; Kellner, A. W. A.
- Hip height
- 3.8 m · 12 ft
- Length
- 25 m · 82 ft
- Weight
- 40 tonnes
- Found in
- Brazil · Presidente Prudente
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Colossosauria
The story in short
The genus Austroposeidon dates to 2016, the year K. L. N. Bandeira and colleagues described it. The name means “southern Poseidon.”
It lived in the Late Cretaceous (Campanian · Maastrichtian), roughly 83.6 to 66 million years ago. Finds come from Brazil, including the Presidente Prudente Formation. It was a herbivore and walked on four legs.
Published estimates put Austroposeidon at a length near 25 m, hips about 3.8 m high, and a body mass around 40 tonnes.
On the family tree it sits in Colossosauria, among the sauropod dinosaurs.
Close relatives
Bonitasaura
Bonitasaura salgadoi
Late Cretaceous (Santonian) · roughly 85.7 to 83.6 million years ago
Chucarosaurus
Chucarosaurus diripienda
Late Cretaceous (Cenomanian · Turonian) · roughly 100.5 to 89.8 million years ago
Inawentu
Inawentu oslatus
Late Cretaceous (Santonian) · roughly 85.7 to 83.6 million years ago