meaning 'recent dawn'. This designation is related to the emergence of modern mammalian faunas. In this Epoch of the Cenozoic Era, the continents continue their migration towards their current positions, the Tethys Ocean disappeared, and the elevation of the Alps isolated what remained from that ocean, forming the Mediterranean. India began its collision with Asia, giving rise to the Himalayas. Other continental collisions occurred, such as that which originated the Rocky Mountains (North America). The end of this epoch is marked by the extinction of various life forms, which can be related to the impact of a meteorite.