Cretoxyrhina is a large fish or shark. It is a fish that have a cartilaginus skelleton. It is the earliest member of the shark family. It is a fish eater and have a taste for larger prey like Tylosaurus a Marine reptile and Elasmosaurus. They ruled the Western Interor Sea during the creatceous period. The best fossils are its teeth which they lose very often. They have great sense of Smell and eye site. The most notable Cretoxyrhina is the Mr. Cretoxyrhina and Carla.