An Unidentified skate or ray filmed at Site 1. Also the difference Ray vs Skate. A ray and a skate are both aquatic animals that belong to almost the same scientific classifications.
Also the fossil records of rays and skates date back to the Lower Jurassic days (150 million years ago). All of the major taxa are known by the Upper Cretaceous (100 million years ago) to the Paleocene (50 million years ago). In contrast to the bony fishes, cartilaginous fishes leave behind little fossil records with the exception of teeth and scales.
Rays and skates are dorsoventrally flattened fish that are closely related to sharks
Exploring Underwater Oases: July 27 – September 1, 2002