A prehistoric species that looked like a bizarre fusion between a crocodile and an armadillo populated parts of South America during the Late Cretaceous. Here’s everything you need to know about Armadillosuchus arrudai. A prehistoric species that looked like a bizarre fusion between a crocodile and an armadillo populated parts of South America during the Late Cretaceous. Here’s everything you need to know about Armadillosuchus arrudai. The Sciences All Articles | Discover Magazine