👉 A protopteran is a type of dinosaur that lived during the Cretaceous period. These dinosaurs were part of the group known as the Protarchy, which included several genera and species. They are characterized by their large size, long necks, and sharp teeth. In terms of appearance, they had a flattened skull and a short neck compared to other dinosaurs in this group. The protopterans lived during the Cretaceous period from about 105 million years ago until around
