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long-neck giant
Caieiria
Say it like this: “kai-eye-ree-uh”
Caieiria allocaudata
Caieiria ate plants and walked on four legs. It lived in the Late Cretaceous. Bones have been found in Brazil.
- When
- Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago
- Named in
- 2022 · Silva Junior, J. C. G.; Martinelli, A. G.; Marinho, T. S.; da Silva, J. I.; Langer, M. C.
- Hip height
- Not established
- Length
- 18 m · 59 ft
- Weight
- Not established
- Found in
- Brazil · Serra da Galga
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Aeolosaurini
The story in short
In 2022, J. C. G. Silva Junior and colleagues published the name Caieiria. The name honors a person tied to the fossil or its study.
It lived in the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Brazil, including the Serra da Galga Formation. It was a herbivore and walked on four legs.
Published estimates put Caieiria at a length near 18 m.
On the family tree it sits in Aeolosaurini, among the sauropod dinosaurs.
Close relatives
Adamantisaurus
Adamantisaurus mezzalirai
Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago
Aeolosaurus
Aeolosaurus rionegrinus
Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago
Arrudatitan
Arrudatitan maximus
Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago