👉 Dasytids, a family of extinct mammals that lived during the late Cretaceous period in Europe and Asia, were characterized by their large size, long limbs, and distinctive head feathers. They are known for their ability to walk upright on all fours while other animals, like horses, only move on two legs. Dasytids played an important role in shaping the ecosystems of these regions, as they provided a habitat for various species.