👉 Eutegaeidae is a family of extinct mammals that lived during the Late Cretaceous period, around 75 to 68 million years ago. They were characterized by their small size and short bodies compared to their large brains, which are typical for other mammals. Eutegaeidae included some of the most advanced and well-adapted mammals known from that time, with characteristics such as a long neck, long limbs, and highly developed sense organs like olfactory