👉 Corethrellinae is a genus of extinct, small to medium-sized, marine reptiles that lived in the Late Cretaceous period (about 68-63 million years ago) in North America and Europe. These reptiles were part of the order Acantholites, which included many different species with unique adaptations for aquatic life. Corethrellinae is characterized by its large head, long neck, and small body size compared to other marine reptiles. They
