Top 10 Deadliest Prehistoric Animals

This includes animals that lived after the dinosaurs, not just dinosaurs and megalodon. This list is awesome.
The Top Ten
1 Megalodon The megalodon is an extinct species of shark which was about 59 feet (18 meters) long and hunted in the seas until about 1.5 million years ago. It was similar to today's great white shark-but three times longer and 20 times heavier... read more

The Megalodon is a perfect example of a creature so deadly that it can kill you, and you'll die never knowing what hit you. The Megalodon was the God of the oceans that feasted on practically any creature. They have amazing sense of smell and vision. It could sink its enormous powerful teeth into nearly any creature it wanted to. All it would take is one bite and death would be near inevitable. At more than 50ft in length, it was the largest shark to ever live. It could swim fast, and the most ridiculous thing about it is its jaw power. Its teeth are already sharp enough, but what they're compacting jaw strength reaches over 18.2 metric tons (more than 40,000 lbs), a force strong enough to crush a whale skull effortlessly. Combined with the ridiculously enormous, sharp teeth, the Megalodon can kill nearly any creature almost immediately. The Megalodon; the most powerful giant beast to have ever lived.

2 Spinosaurus Spinosaurus is a genus of theropod dinosaur that lived in what now is North Africa, during the lower Albian to lower Cenomanian stages of the Cretaceous period, about 112 to 97 million years ago.

Get this thing in first place... NOW! Here are some reasons the first3 shouldn't be there. #1: Megalodon was as big as a bus and had the deadliest bite force of all. It was so big, it was really slow! Plus, it only fed on whales, so it wasn't a huge threat to other marine animals. #2: Saber-Toothed Cat isn't even its real name! Smilodon wasn't even that big anyway. Its mouth didn't open wide enough to use its big fangs, either. #3: Titanoboa was a constrictor, not venomous, and predators to big could just step on it when it was wrapping itself around them. The Spinosaurus was the fastest of the first 4, and the biggest. This dinosaur could hunt in water as well as on land, so it could follow pretty much everything pretty much everywhere. The sail helped it to stay active and to stay at a good temperature.

3 Saber-Toothed Cat

How are sabre toothed cats in 2nd place the only thing they are good at is wrestling also there teeth are brittle and can't bite threw bone. Utahraptor would easily be able to kill sabre toothed cat I think they should be in 2nd placeor pliosaurus.

Why is Andrewsarchus ahead of the saber-toothed cat? I mean I understand the Megalodon, but the Andrewsarchus, really? The saber-toothed car ruled the ice-age!

Meow... the last thing Entelodont hear before their organs are clawed out on the floor.

4 Titanoboa

Same size as a sarcosuchus could kill it, it can swim in waters, it could probably eat a saber tooth in one gulp and he is 40 feet long (12 metres) 400 pounds (181.437 kilo grams) I think he should be in 2 place

Huge. Snake. This beast could eat a stinking school bus. Dunno why it would want to though. Don't look this up if you are afraid of snakes, though.

40 foot long constrictor. 400 pounds per square inch of pressure. Equivalent to being squished with the weight of 3 Eiffel Towers

5 Tyrannosaurus Tyrannosaurus, meaning "tyrant lizard", from the Ancient Greek tyrannos, "tyrant", and sauros, "lizard" is a genus of coelurosaurian theropod dinosaur. It also had a tremendous bite force, the strongest of any Dinosaur and living terrestrial animal. Its bite force reached up to 12,800 pounds (roughly... read more

Tyrannosaurus rex was the strongest carnivorous dinosaur of all time (according to bite force, gape, teeth size, size of the animal and weight). Full grown adults could get as large as 12-13 meters with a weight of 8-9 tons (perhaps even 10 for the biggest). Tyrannosaurus was also one of the most advanced predatory dinosaurs. It could see and smell prey very well and it could outrun some other dinosaurs (max speed of T. rex was around 30-35 km/h).

Why is this not number one? Doesn't his name mean tyrant lizard king?

Tyrannosaurus is strong, but he's nothing compared to the Megalodon.

6 Woolly Mammoth
7 Liopleurodon Liopleurodon is a genus of large, carnivorous marine reptile belonging to the Pliosauroidea, a clade of short-necked plesiosaurs. The two species of Liopleurodon lived during the Callovian stage of the Middle Jurassic Period.

Predator X can't beat the megalodon!

8 Deinosuchus Deinosuchus is an extinct genus related to the alligator that lived 80 to 73 million years ago, during the late Cretaceous period.

Deinosuchus sp. (two species of Deinosuchus) was one of the largest crocodiles (or crocodile like animals). At max size this croc was around 8-10 meters with a weight of 5-8.5 tons (largest individuals). I think Deinosuchus could overpower most, if not all, carnivorous dinosaurs (the largest Deinosuchus).

2 times the length of todays largest crocodiles, at least 10 times the weight and a powerful jaw strength ripping through steel. It had razor sharp teeth and can outsmart anything that tries to take a drink in its lake. (including t. rex and spinosaurus. Just search sarcosuchus or dienosuchus vs. Spino and see who the winner is. A Deinosuchus bite is far more deadly than a T. rex. Getting bitten by this beast is equal to stabbing 250 sharp pieces of glass into yourself. Its that OP

9 Andrewsarchus

Biggest predator that was mammalian, ever. It was related to sheep and looked like a warg.

It's dangerous because it is like a Saber toothed tiger

Andrewsarchus could crush bone it should be in 1st place for strongest bite

10 Mosasaur

Why is the stupid shark the top sea predator? It's not even that big! Sure it could swallow you whole, but that's because of its mouth shape. Mosasaurus is faster an would intentionally swallow sharks whole!

The mosasaur can grow to 17m long and can kill sharks. I believe it is one of the deadiliest.

The Contenders
11 Megalania

This lizard was in essence, a 30 foot long monster that prowled the Australian Outback 40 000 years ago, and would truly have been your worst nightmare if you came across one. Even its name, translates into the latino meaning, "Ancient Giant Butcher/Ripper". It was made all of pure solid muscle, a rapacious demon with curved fangs possibly fostering deadly venom used to dispatch victims with a single bite. Even if the victim, typically a giant kangaroo Procoptodon or the wombat Diprotodon got away, they would soon fall to shock induced blood loss, and die later, leaving a tasty corpse for the monitor to find, a lot like today's Komodo Dragon. Even real dragon wyrms which breathed fire would have thought twice before coming across a reptile this size, if they lived in prehistoric Australia. However, as was the case with other reptiles, like a running Game Of Thrones sized real life lizard lion known as Quinkana Fortirostrum and its relative Pallimnarchus, and the serpent Wonambi Narcootiensis, and the Waarg shaped Thylacoleo Carnifex ( a.k.a Marsupial lion) its rule came to an abrupt halt, coinciding mysteriously with the arrival of sapients on the continent. While there is no doubt that this legendary dragon could certainly kill Aborigines, the wits and brains of their competitors finally proved to be fatal against them. Yet the phantom of this monster lives on in memory, sending chills down one's spine if they even imagine it.

12 Megatherium

Okay first of all you science buff the giagantic sloth you call cool couldn't even run faster than a shamble and the fact that rearing on its back legs could cause pre -arthritis rendering those cool claws useless. Basically it was a large clawed horse

Nothing took him down since t-rex my favourite guy look at those claws on Google!

This thing is dead because us man...

13 Cave Lion An extinct species of lion that once inhabited Eurasia, the Cave Lion is known from fossil evidence and ancient cave paintings. It was slightly larger than the modern African lion and is believed to have been a top predator in its ecosystem, preying on large mammals like deer and bison.

The cave lion ( American Lion) was the largest true feline ever to exist. Although Smilodon was slightly heavier, smilodon wasn't a true cat. If the cave lion existed today, it would be my favorite animal. It had a bite force of over 1600 psi( pounds per square- inch). It could grow up to 12 feet in length, 5 feet in height, and weigh over 930 lbs. It could withstand high pressure on its head. Its greatest competitor was the short- faced bear( arctodus simus) a very close cousin of the the modern- day spectacled bear. To learn more about the bear and the cave lion, you can watch : Jurassic Fight Club- Ice Age Monsters.

14 Sarcosuchus

Sarcosuchus imperator was one of the biggest crocodile-like animals/creatures that ever lived. Current estimates put it at 9 meters max length with a weight of 2.4 metric tons. Perhaps even larger individuals existed. It could attack small, medium and larg(er) dinosaurs. Compared to Deinosuchus however, Sarcosuchus had a longer nose/snout. Perhaps its bite force was less then Deinosuchus (and the not mentioned Purrusaurus).

Excuse me but how is this guy seventeenth?! He could easily kill a T.Rex

15 Deinotherium
16 Arctodus
17 American Lion
18 Hyaenodon
19 Gigantopithecus
20 Dire Wolf
21 Livyatan Melvillei

This prehistoric whale ranks at number 2 (or perhaps even number 1). It is comparable in size to a megalodon (according to the maximum estimates of Livyatan) and possesses an immense amount of weight, making it an incredibly powerful animal. Its teeth were longer than those of the megalodon, and its evolutionary lineage led to a significant increase in brain size. In terms of length, weight, teeth (including bite force and gape), Livyatan was considered the second (or even the first) apex predator of all time.

22 Entelodont

Awesome canines, awesome fighting skills, strongest mammilian bite force ever! 2.1 metres tall! Terminator pigs uber deadly!

Legendary. Seriously, a saber toothed cat had no chance. My favourite animal.

23 Carcharodontosaurus Carcharodontosaurus is a genus of carnivorous carcharodontosaurid dinosaurs that existed between 100 and 94 million years ago, during the Cenomanian stages of the mid-Cretaceous Period.

This carnivorous dinosaur (or Giganotosaurus) comes in after Spinosaurus and Tyrannosaurus rex. Size, weight and power are the most important factors.

24 Short-Faced Bear
25 Gastornis
8Load More
PSearch List