Strange Creatures That Existed in Prehistoric Times (25 pics)

1

Deinocheirus
This dinosaur is a bit of any enigma for paleontologists as the only known evidence for its existence are a handful of fossil remains, including two forelimbs and some bits of vertebrae. The fossilized remains were found on July 9, 1965 in Mongolia and were given the name Deinocheirus or “terrible hands.”

2

Deinotherium
Also called a “hoe tusker” or “terrible beast,” the remains of these prehistoric mammals that resemble modern-day elephants were discovered at major hominid excavation sites at Lake Turkana in Kenya.

3

Dimorphodon
Its name means “two-form tooth” which is the result of having two distinct types of teeth in its jaw. These creatures supposedly had great eyesight and formidable claws to hunt fish, squid or lizards.

4

Dunkleosteus
Also called “Dunkle’s Bone,” this was one of the largest armored jaw fishes to have ever roamed the Earth. Considered one of the fiercest predators in the ocean it could measure up to 10 meters and weighed 3.6 tons.

5

Elasmosaur
Elasmosaur, which means “thin plate,” could have been around 30 feet in height and 46 feet in length. Most of its length was in its neck, which was roughly 25 feet long, or 4 times larger than the neck of a giraffe. When it was first reconstructed, scientists made the mistake of putting its head on the wrong end due to its funny shape.

6

Epidendrosaurus
Though Archaopteryx was credited as the “first bird,” Epidendrosaurus or “lizard of the tree” was the first reptile to be closer to a bird than a dinosaur. It was about six inches long and used its long arms and clawed hands to pry on insects from tree bark.

7

Epidexipteryx
A small-feathered dinosaur that existed once in the Inner Mongolia region of China, Epidexipteryx or “display feather” is the earliest known representation of ornamental feathers in the fossil record.

8

Hallucigenia
A relative of modern arthropods, Hallucigenia is one of the strangest creatures in the fossil record. Less than 3 millimeters long, it has a bulbous round head connected to its cylindrical trunk. Though it was previously thought that it stood on its spines, it was later discovered that the tentacles are actually feet, making the Hallucigenia the ancestor of today’s velvet worms.

9

Helicoprion
Also known as “spiral saw,” this shark-like cartilaginous fish first arose in the oceans of the late Carboniferous era. However, the only surviving evidence of its existence was a tight curled-up coil of triangular teeth. This bizarre structure was attached to the bottom part of its jaw, though how it was used still remains a mystery today. Some speculations are that it was used to grind shells, while others believed that the coil could be unfurled like a whip to spear unfortunate prey.

10

Jaekelopterus
This extinct species of sea scorpions had an estimated length of 2.5 meters, one of the largest arthropods ever discovered. Although it was dubbed a “sea scorpion,” it supposedly lived in the freshwater rivers and lakes of present day Germany.

11

Josephoartigasia
Related to the modern pacarana and very closely resembling a capybara, these creatures were the biggest rodents on the planet weighing up to 1000kg.

12

Liopleurodon
Also known as “smooth-sided tooth,” this marine predator lived on a diet of fish, squid, and other sea reptiles. Bigger than a sperm whale, its skull was 16 ft or nearly 1/4 of its body.

13

Longisquama
Known as the first archosaur to have been able to glide or parachute, its famous for the elongated pair of scales along its back, with the anterior ones resembling feathers.

14

Megalania
Sometimes called the giant ripper lizard, Megalania fed on a diet of mammals, snakes, other reptiles, and birds. The nearest modern day relative is the Komodo dragon that inhabits the Flores Islands in Indonesia.

15

Microraptor
Microraptor or “one who seizes” was a very small dinosaur and paleontologists have long debated the use of its four wings – whether they were for parachuting from trees or taking off from the ground.

16

Nyctosaurus
An ancient genus of the Pterosaur, its fossils were found in the mid-western sections of the US covered under the shallow water of the sea. The name, which means ‘naked reptile,’ was given by Othniel Marsh in 1876.

17

Opabinia
Considered one of the strangest creatures to have ever lived, it had 30 legs, 30 flippers, a nose like an elephant’s trunk, and a lobster-like claw.

18

Phorusrhacidae
Colloquially known as “terror bird,” this was the largest flightless predatory bird to have ever lived. It fed on small rodents and mammals and could supposedly run at speeds of up to 40 mph.

19

Pterodaustro
Also known as Pterosaurs, it had a wingspan of 4 feet and may have weighed between 5 to 10 lbs. Its long, curved beak with numerous bristle-like teeth allowed it to feed on a diet of plankton and small crustaceans.

20

Quetzalcoatlus
The biggest pterosaur to ever take to the skies, it supposedly did not have any feathers. Though it had a wing span that exceeded 30 feet, it took off using both its hind and front legs and flew without flapping its wings.

21

Sharovipteryxe
Greek for “Sharov’s wings,” this gliding reptile that inhabited the woodlands of Central Asia was about one foot long and mostly fed on insects. Not capable of powered flight, it would merely glide from tree to tree something like a flying squirrel.

22

Stethacanthus
An extinct genus of prehistoric sharks, Stethacanthus or ‘chest spike,” was about 6 feet long with a strange looking back growth on males. This small protrusion or ‘ironing board,’ could have been used to frighten larger predators.

23

Tanystropheus
The Greek word for “long necked one,” this prehistoric reptile was easily over 20 feet long, with a narrow neck that could extend out for up to half its length.

24

Therizinosauridae
The “reaper lizards” may have roamed Mongolia, China, and the United States and due to their long neck, pot belly, four-toed feet, and beaky mouth, scientists at first thought they may be not one but several creatures.