In 1914, the Hungarian geologist
Ottokár Kadić in the Pârâul Budurone ravine near Vălioara, discovered a skeleton of a sauropod which was markedly larger than previously found sauropod remains in the area. In 1916, the discovery, consisting of limb bones and eight vertebrae, was reported in the scientific literature. By 12 January 1927 two vertebrae had been sent to
Friedrich von Huene at the
University of Tübingen. Von Huene described these in 1932, preliminary referring them to a ?
Magyarosaurus hungaricus, presently
Petrustitan. In 2021 the site was rediscovered and only then it was realised that all the bones had belonged to a single animal, "Individual C". It was concluded that it represented a taxon new to science. In 2025, the
type species Uriash kadici was named and described by Verónica Díez Díaz, Philip David Mannion, Zoltán Csiki-Sava and Paul Upchurch. The generic name
Uriash references the Romanian word
uriaș, the giant in
Romanian Folklore, while the specific name
kadici references the Hungarian geologist
Ottokár Kadić (1876–1957). Individual C is the
holotype. It was found in the lower middle member of the
Densuş-Ciula Formation probably dating from the early
Maastrichtian. It contains the tail vertebrae SZTFH Ob.3090 B, D, G, H (four vertebrae have been lost), the right humerus SZTFH Ob.3104, the thighbones SZTFH Ob.3103 and the left first metatarsal SZTFH Ob.3095. == Description ==