MEGALODON The megalodon, Carcharodon or Carcharocles megalodon is an extinct megatoothed shark that existed in prehistoric times, from the Oligocene to Pleistocene epochs, approximately 25...
Mosasaurs were the dominant predators of the late Cretaceous seas. These ferocious reptiles grew up to 50 feet long, And are sometimes called the T-rex...
mosasaurs were the oceans dominant predator during the late cretaceous, the biggest of them reaching the size of a basking shark! They swam in groups...