Excellent work! The Champsosaurus grew up to an average of 5 feet in length and weighed around 25-50 pounds. It ate fish, and lived in the rivers of North America and western Europe. The long narrow profile and a tooth studded snout distinguishes this species. Majority of the champsosaurus population also survived the Cretaceous-Paleogene extinction event that killed off three-quarters of the plant and animal species on Earth, including the dinosaurs. However you’re almost there to a modern day crocodile. Choose Wisely!