Giant "terror crocodiles" as large as buses once roamed Earth. A study published this week in the "Journal of Vertebrate Paleontology" described the crocodiles. Researchers who are experts in paleontology - the study of dinosaurs - studied old bones found in North America. They said the dinosaurs lived along the Pacific and Atlantic coasts. The giant beasts preyed on other dinosaurs. They were up to ten metres long. The researchers found that the prehistoric crocodiles had razor-sharp teeth the size of large bananas.
A co-author of the study detailed how he thought the crocodiles lived. He said they lived around 75 million years ago. They are the ancestors of today's crocodiles. He wrote about his research on the bone parts. He said: "Until now, the complete animal was unknown. These new specimens we've examined reveal a bizarre, monstrous predator with teeth the size of bananas." He said it "must have terrorised other dinosaurs that came to the water's edge to drink." Another author described how scary it was. She wrote: "It was so enormous, almost everything in its habitat was on the menu."