Genus: Kryptohadros  MAGYAR, ŐSI, CSIKI-SAVA, BUDAHI & BOTFALVAI,2026
Etymology: Greek, krypto, “hidden” and Greek, hadros, “thick, bulky”, the latter often used to name hadrosuaroids, meaning ‘Hiddne hadrosauroid”, with reference to the fact that the presence of a second hadrosauroid taxon in Hateg Basin remained unacknowledged, i.e. ‘hidden’, for well over a century while all hadrosuroid remains were uncritically referred to the previously described Telmatosaurus. It also refers to the fat that the holotype lied hidden for decades in the immediate proximity of the previously intensively excavated Fantanelo MvBB.

Species: kallaiae MAGYAR, ŐSI, CSIKI-SAVA, BUDAHI & BOTFALVAI, 2026
Etymology: In memory of Csilla Kallai (1968-2003) mother of the first author, honoring her continuous and full-hearted support and encouragements for pursuing his studies in natural sciences.

Holotype: LPB (FGGUBP R.2882

Locality: Fantanele-3, north-west of Valioara, the wesernmos part o fHateg Basin, Hunedoara County, Transylvania, Romania.

Horizon: Lower part of the middle Member, Densus -Ciula Formation.

Biostratigraphy:

Age:  Early part of the Early Maastrichtian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Right premaxilla fragment, right nasal, left maxilla, left jugal fragment, 2 dental parapet fragments, right pterygoid, right dentary, a small fragment of the left dentary, left surangular, as well as four isolated maxillary and six isolated dentary teeth, 4 dorsal rib fragments, 22 caudals, isolated neutral spine fragment, 5 chevrons, fragments of the left and right femora, the left tibia, and fragments of the left and right fibula.