Prehistoric Animals That We Are Glad Went Extinct

Mosasaurus

#2 Mosasaurus

A 60-feet large specimen of the marine reptile group, the Mosasaurus is amongst the most feared creatures of the deep waters.

Several clips on the Discovery channel have given us a glimpse of what this horrific creature is capable of when provoked!

Its bulky and scaled body with a scarily long tail and fins with an endless range of sharp teeth make it worth featuring in this list.

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