Calvarius is a genus of iguanodontian ornithopod from the Late Cretaceous Talarn Formation of Spain. This genus contains a single species and is the type species, Calvarius rapidus.
Discovery and naming[]
The name "Calvarius" means "suffering" in Latin. The specific name, "rapidus", means "rapid", and refers to its running behaviors.
Description[]
Calvarius lived on Ibero-Armorican islands, which were found on France, Spain, and Portugal. The island was considered to be the biggest westernmost island of European Archipelago.