fossil remains of enchodus lemonnieri, a ray finned fish that was common spread during the late cretaceous period

actinopterygii ancient animal animals background bone bones common cretaceous enchodus eocene evolution extinct finned fish fishes fossil fossils geologic geological geology historical history ichthyology late lemonnieri life limestone marine museum old paleontology period prehistoric prehistorical prehistory ray remain remains research science skeleton some specie species spread that time upper was zoology