👉 Ptychatractidae is a family of small, mid-size mammal species in the order Phanerozoa, which includes many mammals such as bats, whales, and dolphins. This family consists of around 10 genera, with about 25-30 species known to science. They are characterized by their large size (up to 5 meters), short legs, and powerful jaws that allow them to grasp prey with ease.