Mega-Cool Megafauna: Creatures of Ancient Seas

Mega-Cool Megafauna: Creatures of Ancient Seas — page 3
Giant unusual life forms filled the seas long before humans ever lived Ancient seas were filled with megafauna What was it like to live in the sea long ago Scientists say that 299 million to 273 million years ago there was only one continent and one giant ocean They named this land Pangaea and called the ocean around it Panthalassa As time passed Pangaea slowly broke apart and new continents formed The continents and the oceans around them were given new names 6