👉 Dactylopusiidae is a group of extinct mammals that lived during the late Cretaceous period, approximately 68-72 million years ago. These creatures were characterized by their large, slender bodies and long, slender limbs, which allowed them to crawl on land or swim in water. They had a distinctive head with a long snout, paired ears, and a long neck. The Dactylopusiidae are believed to be extinct due to extinction