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long-neck giant
Tiamat
Tiamat valdecii
Tiamat ate plants and walked on four legs. It lived in the Early Cretaceous · Late Cretaceous. Bones have been found in Brazil.
- When
- Early Cretaceous · Late Cretaceous (Albian · Cenomanian) · roughly 113.2 to 93.9 million years ago
- Named in
- 2024 · Pereira, P. V L. G. C.; Bandeira, K. L. N.; Vidal, L. S.; Ribeiro, T. B.; Candeiro, C. R. dos A.; Bergqvist, L. P.
- Hip height
- 2 m · 7 ft
- Length
- 9 m · 30 ft
- Weight
- 2.2 tonnes
- Found in
- Brazil · Açu
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Titanosauria
The story in short
The genus Tiamat dates to 2024, the year P. V L. G. C. Pereira and colleagues described it. The name honors a person tied to the fossil or its study.
Fossils referred to Tiamat date to the Early Cretaceous · Late Cretaceous (Albian · Cenomanian), roughly 113.2 to 93.9 million years ago. Finds come from Brazil, including the Açu Formation. It was a herbivore and walked on four legs.
Published estimates put Tiamat at a length near 9 m, hips about 2 m high, and a body mass around 2.2 tonnes.
On the family tree it sits in Titanosauria, among the sauropod dinosaurs.
Close relatives
Aegyptosaurus
Aegyptosaurus baharijensis
Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago
Andesaurus
Andesaurus delgadoi
Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago
Antarctosaurus
Antarctosaurus wichmannianus
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago