- Onchopristis was a large sawfish that lived in the Early to Middle Cretaceous Period, around 116 to 108 million years ago in what is now Egypt and Morroco in Africa. It was prey for Spinosaurus, Sarcosuchus, and Rugops. In Planet Dinosaur Episode 1: Lost World. A group of two Onchopristis were swimming in a river when suddenly, one of them got caught and became prey for a fishing Spinosaurus.
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