👉 Milnesiidae is a family of extinct marine animals that lived during the Late Cretaceous period, approximately 79 million years ago. These creatures were characterized by their large size and distinctive features, including elongated heads with bulbous nostrils and a long snout. They were known for their hard, tough skin and had an unusual ability to change color from dark brown to white as they grew larger. The most well-known member of this family is the Milnesiid tooth
