Uriash

Say it like this: “yoo-ree-ash”

Uriash kadici

Uriash ate plants and walked on four legs. It lived in the Late Cretaceous. Bones have been found in Romania.

Quiz me on Uriash

When: Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago
Named in: 2025 · Díaz, V. D.; Mannion, P. D.; Csiki-Sava, Z.; Upchurch, P.
Hip height: Not established
Length: 8.8–11.9 m · 29–39 ft
Weight: 5–8 tonnes
Found in: Romania · Densuș-Ciula
Food and walking: Herbivore · Four legs
Kind: long-neck giant · Sauropod
Family branch: Lithostrotia

The story in short

Uriash was formally named in 2025 by V. D. Díaz and colleagues.

Fossils referred to Uriash date to the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Romania, including the Densuș-Ciula Formation. It was a herbivore and walked on four legs.

Published estimates put Uriash at a length near 8.8–11.9 m and a body mass around 5–8 tonnes.

On the family tree it sits in Lithostrotia, among the sauropod dinosaurs.

Close relatives

Atacamatitan

Atacamatitan chilensis

Late Cretaceous (Cenomanian–Maastrichtian) · roughly 100.5 to 66 million years ago

Dreadnoughtus

Dreadnoughtus schrani

Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago

Elaltitan

Elaltitan lilloi

Late Cretaceous (Coniacian) · roughly 89.8 to 85.7 million years ago