PREHISTORIC MAGAZINE is a free online publication dedicated to chronicling and exploring the earth's prehistoric past. We aim to tell the stories of the  Sign up for free today!

MAIP MACROTHORAX is a chilling new predator that lived 70 million years ago in Argentina. It is currently the largest megaraptor ever discovered. Its name means the shadow of death which kills with cold wind in the Andes mountains. 

SIATS 

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SIATS MEEKERORUM was an enormous predatory dinosaur that stalked Utah 100 million years ago. At 39 feet in length and over 4 tons in weight, it was one of the largest predators ever to stalk North America.