👉 Bathysaurids are a family of marine reptiles that belong to the order Reptilia, commonly known as "reptile" families. They have a distinctive characteristic of having a streamlined body shape and no limbs, which allows them to swim without their feet, but they also lack any backbone or vertebral column. Bathysaurids are often characterized by their long, slender bodies, short legs, and a large head that is adapted for swimming.
