Beasts

 Dimetrodon

this predator lived in the Permian period.

It is often mistaken to be a dinosaur but it lived 40 million years before them.

Despite its reptilian look, Dimetrodon is more closely related to us than a lizard!

 Gorgonops

This hunter lived at the end of the Permian
period.

Megalodon

Megalodon was the largest shark ever, reaching leangths of 18 meters!

Its teeth were the size of your hand!

Titanoboa

What is the biggest snake of all time?

TITANOBOA!!!!

This 13-meter long monster snake ate crocodiles
and fish.

Dunkleosteus
 

Dunkleosteus was a monstrous killer fish that lived in the Devonian period.

It didn't have teeth, instead, it had boney plates.

 

Smilodon 

Also known as the Saber-toothed cat, smilodon means knife tooth.

Mosasaurus And Other Mosasaurs

In the Cretaceous period, a new group of underwater hunters appeared.

THE MIGHTY MOSASAURS.

But not all Mosasaurs were so mighty.

Clidastes was only 4 meters long.

So how did Clidastes survive?

One theory is that they lived in the shallow water leaving the larger Mosasaurs like Tylosaurus to the deep sea.