Polish and Swedish paleontologists made an “unexpected” discovery. These are dicynodont bones that would prove that the ancestors of mammals were even larger than the dinosaurs.

Fossils belonging to a dicynodont were discovered near the Polish village of Lisowice by a group of Swedish and Polish paleontologists, reports Science magazine.

The size of these bones would prove that it is the largest specimen of dicynodont ever found.

We believe this is the most unexpected discovery of the Triassic in Europe, ” said Grzegorz Niedzwiedzki, one of the authors of the research.

More than four meters long, this ancestor of mammals that lived more than 200 million years ago was larger than many dinosaurs.

Scientists also point out that, unlike previously discovered dicynodonts, this specimen is more like a rhinoceros than a lizard.