Uriash
Uriash was a huge, long-necked plant-eater that lived on an ancient island in what is now Romania. It was one of the biggest dinosaurs ever found in Europe from the very end of the Age of Dinosaurs.12
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Fun facts
Uriash was named in 2025, making it one of the newest dinosaur discoveries.1
Its fossils were first found in 1914 by geologist Ottokár Kadić, but it took over 100 years for scientists to realize it was a new species.1
Uriash lived on Hațeg Island, a large island in the ancient European archipelago during the Late Cretaceous.2
It was the second largest titanosaur known from the Late Cretaceous of Europe, only smaller than Abditosaurus.1
The name Uriash comes from the Romanian word 'uriaș', meaning giant, and honors Ottokár Kadić.1
Its bones include tail vertebrae, a right humerus, thighbones, and a foot bone, all from one individual.1
Most asked questions about Uriash
?How big was Uriash?
Uriash was about 8.83 to 11.87 metres (29.0 to 38.9 feet) long and weighed up to 5 to 8 tonnes (5.5 to 8.8 short tons).1
?What did Uriash eat?
Uriash was a plant-eater, like all sauropods. It ate plants on the ancient island where it lived.1
?When did Uriash live?
Uriash lived during the Maastrichtian age of the Late Cretaceous, about 71 to 66 million years ago.1
?Where was Uriash found?
Uriash fossils were found in the Hațeg Basin in western Romania, near the village of Vălioara.12
?Was Uriash a dinosaur?
Yes, Uriash was a dinosaur. It was a titanosaurian sauropod, a long-necked plant-eater.1
?Was Uriash bigger than T. rex?
Uriash was similar in length to T. rex, which reached about 12 metres, but T. rex was heavier. Uriash was one of the biggest European dinosaurs.1
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For dino experts
- Scientific name
- Uriash
- Named by
- Díez Díaz et al. 20253
- Group
- Long-necks
- Family / clade
- Lithostrotia3
- Classification
- Sauropodomorpha > Sauropoda > Titanosauria > Macronaria3
- Age of the rocks
- 72 to 66 million years (Maastrichtian)3
- Rock formations
- Densuș-Ciula3
- Countries
- Romania3
- Fossil records
- 1 in the Paleobiology Database3
- Discovery
- The first bones were found in 1914 by Hungarian geologist Ottokár Kadić near Vălioara, Romania. They were later studied and named Uriash kadici in 2025 by a team of scientists.1
- Still debated
- Scientists are still debating exactly how Uriash is related to other titanosaurs, especially those from South America.2
Where the facts come from
- Uriash (en.wikipedia.org)
- Full article: Revision of Romanian sauropod dinosaurs reveals high titanosaur diversity and body-size disparity on the latest Cretaceous Haţeg Island, with implications for titanosaurian biogeography (tandfonline.com)
- Uriash in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.
Every fact on this page has a number that points to its source. If we got something wrong, sorry, we are dino fans, not a science journal. Tell us at [email protected] and we will fix it.
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