The ocean phantom is a marine siphonophore native to the shallow seas covering central and northern Asia 100 million AD. It is a giant type of siphonophore, a colonial organism composed of several individuals which serve different roles, and can grow up to 10 meters (32.75 feet) long, 4 meters (13.0625) feet wide, and be composed of several thousand polyps, making it the largest marine animal of 100 million AD.