Western Inside Seaway: 80 million years in the past, this historic sea divided North America into two landmasses, Laramidia and Appalachia, reaching depths of two,500 ft and lengths of over 2,000 miles.
Tylosaurus: A dominant predator of the Western Inside Seaway, Tylosaurus may develop as much as 46 ft lengthy and weigh roughly 18,800 kilos, showcasing outstanding velocity and agility.
Mosasaurus hoffmanni: This large marine reptile, probably reaching lengths of fifty to 56 ft and weighing between 33,000 to 60,000 kilos, was the biggest marine predator of its time, able to crushing prey with its highly effective jaws.
Dinosuchus: The most important crocodile in historical past, Dinosuchus may develop as much as 40 ft lengthy and weigh over 17,600 kilos, possessing a chunk pressure estimated at 100,000 Newtons, able to crushing bones and autos.
Aralon: This monumental turtle, measuring 15 ft in size and weighing 4,800 kilos, was a formidable creature of the Cretaceous Interval, typically predated by mosasaurs regardless of its dimension and difficult shell.
Zygorhiza: An enormous ray-finned fish, Zygorhiza reached lengths of 13 to twenty ft and was recognized for its aggressive feeding habits, consuming a variety of marine life, together with smaller fish and even younger mosasaurs.
Parapuzosia: The most important recognized ammonite, Parapuzosia had a shell diameter of as much as 11.5 ft and weighed roughly 3,300 kilos, making it the heaviest invertebrate of all time, thriving within the Western Inside Seaway.