Sarcosuchus
The flesh crocodile is one of the most terrifying extinct animals in the world. They existed 133 to 112 million years ago, and were an average of 30 feet tall and weighed about 3.9 short tons. They were in what is now South America and Africa. Their remains were first discovered in the 1950s, when they found teeth, vertebrae, skull, and scutes. This is certainly not a beast you’d want to accidentally bump into. They’re also known as ‘super croc,’ and while we feared dinosaurs, these animals were also frightening. To kill its prey, it would use its backwards facing teeth to latch onto it, and then drag it into the water to drown it. Its prey might’ve even included dinosaurs, so you could only imagine what it would do to us (Dinopedia).