Prehistoric monsters: a selection of impressive remains of long-extinct creatures (14 photos)

Dinosaurs and related groups of prehistoric creatures became extinct millions of years ago. And in fact they did us a lot a favor, for these giants are incredibly huge and scary. For modern crocodiles or sharks are just bugs compared to creatures ancient past. Let's see how creepy the prehistoric ones were monsters whose remains have been found in different parts of the world.

Melville Leviathan - an ancient cetacean creature





When he lived: 9.9-8.9 million years ago

Deinosuchus - an alligatoroid crocodile that weighed over 8.5 tons



When he lived: 80-73 million years ago

Spinosaurus - waterfowl spiked lizard



When he lived: 112-93.5 million years ago

Giant ichthyosaur



When he lived: 90 million years ago

Liopleurodon is a formidable predator and an excellent swimmer



When he lived: 160-155 million years ago

Argentinosaurus is one of the largest dinosaurs to have ever lived in South America.



When he lived: 99.6-89.8 million years ago

Basilosaurus - an ancient whale



When he lived: 45-36 million years ago

Utahraptor - a dinosaur that was probably covered in feathers



When he lived: 130-125 million years ago

Arthropleura - giant centipede



When she lived: 314.6-290.1 million years ago

The scientists decided to make a life-size model of a centipede to see what it would look like in real life.

Ammonite - a giant invertebrate mollusk



When he lived: About 65 million years ago

Tyrannosaurus is a carnivorous theropod dinosaur from the tyrannosaurid family.



When he lived: about 96 million years ago

Glyptodon had a mass of up to 2 tons and reached almost 3 meters



When he lived: 15.5-0.012 million years ago

Triceratops - a horned giant that weighed more than 10 tons



When he lived: 68-66 million years ago

Titanoboa - a giant snake, was a close relative of the boa constrictor



When she lived: 61.7-58.7 million years ago