@jared.cooke: Tylosaurus was the first true giant in the mosasaur world. At 80 million years old, these titans of the Cretaceous period preceded the Maastrichtian generation of giant mosasaurs like Prognathodon and Mosasaurus. Here, in the Texan waters of the early Campanian stage, Tylosaurus dominated the food chain, holding dominion even over other predators like Xiphactinus (the 17 foot killer fish), and Latoplatecarpus, a 15 foot fish-eating mosasaur. . . . #paleontology #fossilhunting #northsulphurriver