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long-neck giant
Chucarosaurus
Say it like this: “SHOO-kah-ro-SOR-us”
Chucarosaurus diripienda
Chucarosaurus ate plants and walked on four legs. It lived in the Late Cretaceous. Bones have been found in Argentina.
- When
- Late Cretaceous (Cenomanian · Turonian) · roughly 100.5 to 89.8 million years ago
- Named in
- 2023 · Agnolín, F. L.; González Riga, B. J.; Aranciaga Rolando, A. M.; Rozadilla, S.; Motta, M. J.; Chimento, N. R.; Novas, F. E.
- Hip height
- Not established
- Length
- 24 m · 79 ft
- Weight
- Not established
- Found in
- Argentina · Huincul
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Colossosauria
The story in short
In 2023, F. L. Agnolín and colleagues published the name Chucarosaurus. The name means “indomitable reptile.”
Fossils referred to Chucarosaurus date to the Late Cretaceous (Cenomanian · Turonian), roughly 100.5 to 89.8 million years ago. Finds come from Argentina, including the Huincul Formation. It was a herbivore and walked on four legs.
Published estimates put Chucarosaurus at a length near 24 m.
On the family tree it sits in Colossosauria, among the sauropod dinosaurs.
Close relatives
Austroposeidon
Austroposeidon magnificus
Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago
Bonitasaura
Bonitasaura salgadoi
Late Cretaceous (Santonian) · roughly 85.7 to 83.6 million years ago
Inawentu
Inawentu oslatus
Late Cretaceous (Santonian) · roughly 85.7 to 83.6 million years ago