The New Romanian Hadrosaurid Dinosaur: Kryptohadros kallaiae

Publication Info:

Transcript:

János Magyar et al. 2026. New early Maastrichtian ‘duck-billed’ dinosaur from Hațeg Basin (Densuș-Ciula Formation, Romania) documents an endemic clade of non-hadrosaurid hadrosauroids in the south-eastern Late Cretaceous European Archipelago. Journal of Systematic Palaeontology 24 (1); doi: 10.1080/14772019.2025.2607800

Meet Kryptohadros kallaiae. This new dinosaur, along with its close relative Telmatosaurus, is giving paleontologists a new, better understanding of hadrosaur evolution in Cretaceous Europe.

Episode 294

Notes:

New dinosaur alert. Here's your most recent paleontology news, almost daily or whenever I get around to it. So, in the Cretaceous, Romania was very different than it is today. Instead of being part of a giant land mass, it was a part of a series of islands, like most of southeastern Europe. And that's a big part of why it's so famous for having really good evidence for things like island dwarfism, at least in some groups of dinosaurs. But as far as hadrosaurs go in the area, or hadrosaur relatives, it pretty much had Telmatosaurus. And since so many of the hadrosaur fossil remains from the area are so fragmentary, they either are assumed to be or could be Telmatosaurus. But researchers just found some much more complete fossils from the area, and they were actually able to name a new species and genus. Meet Kryptohadros kallaiae, which is a close relative of Telmatosaurus, but still a distinct species. And it's known from a skull, rib fragments, tail vertebrae, and even a partial hind leg, which for the area is pretty impressive. And Kryptohadros kallaiae isn't just cool because it's another new dinosaur. It's been grouped in with Telmatosaurus and Tethyshadros from Italy to make their own evolutionary group, Telmatosauridae. Because according to paleontologists, these three dinosaurs indicate a distinct evolutionary lineage within hadrosaurs endemic to the islands in southeastern Europe. As usual, if you want more information, here's the source.