Continents 65 million years ago, illustration. Elliptical projection of the Earth's continents as they appeared at the end of the Cretaceous Period (145 to 65 million years ago). The alignment of the continents shown here dates to around 65 million years ago, aftert the break up of the supercontinent called Pangea. The Pangea supercontinent formed around 300 million years ago and began to break up around 200 million years ago to form the continents as we know them today. For labelled and unlabelled sequences of illustrations of the continents from 390 to 65 million years ago, before and after the formation and breakup of Pangea, see images C046/9220 to C046/9231. For a labelled version of this map, see image C046/9229.