RAREST Prehistoric Animals That Existed Long Ago!

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Check out the RAREST Prehistoric Animals That Existed Long Ago! From the biggest extinct creatures to the rarest beasts that roamed the planet, this top 10 list of amazing animals that went extinct will surprise you!

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10. Longisquama
Longisquama lived between 240 and 230 million years ago, and its discovery has cast doubt over the theory that all birds have descended from dinosaurs. They existed more than 80 million years before the first known feathered dinos but, as you can see, they clearly had feather-like structures… or did they?

9. Glyptodon
Glyptodons lived in North and South America during the last Ice Age… and if they look familiar, that’s because they were the ancestors to modern armadillos- just a lot, lot bigger. They were covered from head to tail in a thick casing of protective armor made up of more than 1000 bony plates, and their heads and armored tails protruded from within the main body shell. Before you think Glyptodons were cute little creatures… they could grow to be the size of a small car, and weigh as much as a tonne!

8. Hallucigenia
The Hallucigenia is one of the most bizarre animals to have ever lived. This tiny sea creature lived around 500 million years ago, and since the discovery of the first fossil more than 100 years ago, it has baffled researchers. Growing to less than an inch long, and thinner than a strand of hair, they had pairs of huge spines on one side of their body and stick-like claws on the other side. The strange thing, though, was that of all the specimens discovered, none seemed to have a head.

7. Beelzebufo ampinga
The Beelzebufo ampinga, commonly called the ‘devil frog’, is thought to have been the largest species of frog to have ever lived. They were common across Madagascar between 70 and 65 million years ago, and grew to up to 16 inches long, and 10 pounds in weight, and had a large cranial shield for protection.

6. Estemmenosuchus
The Estemmenosuchus, which means ‘Crowned Crocodile’ was a type of mammal-like reptile, called a therapsid, that lived between 268 and 266 million years ago. Evidence of 2 different species have been found, both of which lived near Perm, in Russia and had very slight differences from each other. They grew to up to 10 feet long and had massive skulls that were as much as 26 inches in length.

5. Madtsoia
There are a number of examples of prehistoric animals being much larger than their counterparts that exist today, and there’s no better example of this than the Madtsoia… a giant species of snake. Individual vertebrae have been found that were 1.8 cm long (0.72 inches) and 4.3 cm tall (1.71 inches), which would suggest the entire animal could have been as much as 4.9m (16 feet) in length, with speculation being that there could have been ones as long as 8 meters (26 feet).

4. The Siberian Unicorn
The Siberian Unicorn, long thought to be the true inspiration behind stories of unicorns, was actually a type of rhinoceros that lived on the grasslands of Eurasia until about 39,000 years ago. Its proper name, Elasmotherium, means ‘thin plate beast', and they grew to up to 16 feet long, and weighed as much as 5 tons.

3. Epicyon
The Epicyon is one of the largest prehistoric dogs known to have lived and roamed the plains of North America between 15 and 5 million years ago. The name means ‘more than a dog'… which makes sense, because they could grow to 1.5 m (5 feet) long, and weigh more than 136 kg (300 pounds). They belonged to the same group as wolves and hyenas and had such powerful jaws and teeth that their heads looked more like a cat's than a modern dog's.

2. Machimosaurus Rex
The waters of prehistoric oceans and lakes were treacherous places to be, and the Machimosaurus Rex was one of the deadliest predators to have ever lived. As far as we know, they were the largest sea dwelling crocodiles ever to have lived- terrorizing the waters near modern-day Tunisia around 130 million years ago.

1. Paraceratherium
The Paraceratherium was an absolutely huge species of hornless Rhinoceros that lived across China, India, Kazakhstan, and Pakistan around 30 million years ago. They were the largest terrestrial mammals ever known to exist… and grew to 15.7 feet tall, 24.3 feet long, and weighed as much as 20 tonnes.

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