Scariest Prehistoric Animals (Part 2)

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Published on August 3, 2018 1:00:03 PM ● Video Link: https://www.youtube.com/watch?v=JsMxTFYuC5g

Duration: 12:30

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Scariest prehistoric animals! These terrifying sea creatures & dinosaurs are extinct, but lived millions of years ago.

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11 Diplodocus
Sauropods are mostly depicted as gentle giants, which isn’t far from the truth for these enormous herbivores. Nevertheless, they did own some features that made them quite frightening. Sheer size was one of them, as these were among the largest known dinosaurs, with weights that exceeded 100 tons and lengths that often surpassed 100 feet.
10 Deinocheirus
Deinocheirus is part of a dinosaur family that superficially resembled present-day ostriches. It’s full name ‘Deinocheirus mirificus’ is derived from Greek and it means ‘horrible hand’. Each of its three-fingered hands featured massive blunt claws. It’s been theorized that the Deinocheirus might have used its claws as defensive weapons or to tear apart large dinosaurs.
9 Crassigyrinus
This scary aquatic animal looked like a cross between a salamander and a moray eel. It had four stunted legs, a long sinuous body and a massive head with unusually large jaws that featured long, sharp teeth. Rarely exceeding 6 feet in length, but that didn’t mean it wasn’t an apt predator.
8 Arctodus
Even when it stood on all fours, Arctodus, also known as the short-faced bear, was tall enough to look an adult human in the eye. This was due to its long legs which enabled it to reach running speeds between 30 and 40 mph. It’s been theorized that the bear would hunt down Pleistocene herbivores, like saiga antelopes and wild horses, using a cheetah-like technique.
7 Nothosaurus
The Nothosaurus lived during the Triassic period and it’s believed that it had a lifestyle similar to today’s seals. That may sound harmless enough, except for the fact that this creature could reach lengths of up to 25 feet and basically looked like a giant swimming lizard. As a semi-oceanic animal, it had a long tail and webbed toes which it used to quickly propel itself and steer through the water.
6 Pulmonoscorpius
Its name literally translates as ‘lung scorpion’ and it’s a predatory arachnid from the early Carboniferous period, around 330 million years ago. Its fossils were found at a quarry in Scotland. This ancient scorpion species dwarfed its present-day successors with a total body length that could reach 2.5 feet.
5 Gorgonopsia
Gorgonopsians roamed the Earth roughly 250 million years ago and became the apex predators of the late Permian. These animals had a gait similar to a crocodile’s high-walk which enabled them to be faster than their prey. Their most prominent feature was their long saber-tooth canines.
4 Meganeuropsis
Those who are scared of insects should be glad this creature from the Permian period isn’t still around today. A distant relative of today’s dragonfly, Meganeuropsis permiana is basically the largest insect that ever lived. It had a total body length of close to 17 inches and a wingspan of approximately 28 inches. It may have even preyed on animals as large as frogs, for sustenance. One theory is that the meganeuropsis was able to grow so large because, at that time, the planet’s oxygen levels were much higher.
3 Carnotaurus
This was one of the scariest animals of Late Cretacious period. This is evident by the name ‘Carnotaurus’ which is derived from Latin and translates as ‘meat-eating bull’. Like the notorious T-Rex, the Carnotaurus was part of the theropod family, which generally consisted of large bipedal carnivores.
2 Mosasaurs
Before they went extinct about 66 million years ago, large mosasaurs were the dominant marine predators. Their bodies resembled that of modern monitor lizards only more adapted for swimming with paddle-like members and broad tails which may have had large flukes at the end. Like some snake species, they had flexible skulls and double hinged jaws that enabled them to swallow their prey almost whole.
1 Helicoprion
Helicoprion lived in the world’s oceans during the early Permian, around 290 million years ago. This shark-like fish would average 25 feet in length and weigh close to half a ton. Instead of the tooth placement that is typical for most of today’s fish and sharks, the helicoprion had a tooth whorl, similar to a circular saw. As the fish got older, the smaller teeth were pushed to the center of the whorl by larger, newer teeth.