YOU JUMP BACK IN THE TIME MACHINE AND CLICK THE YELLOW CENOZOIC BUTTON. IN SECONDS YOU ARE BACK SOARING HIGH IN THE AIR LOOKING DOWN AT THE CHANGING EARTH. YOU STOP, THE DOORS OPEN. THE CENOZOIC ERA STARTED 65 MILLION YEARS AGO. THE CENOZOIC ERA HAS NOT ENDED YET. THIS ERA IS ALSO KNOWN AS THE AGE OF MAMMALS. WHAT WAS THE CLIMATE LIKE ? THE CLIMATE DURING THE CENOZOIC ERA IS MOSTLY WARM. THERE IS VARIED SEASONS THROUGHOUT EACH YEAR. HOWEVER 55 MILLION YEARS AGO THERE WAS A WORLD WIDE GLOBAL WARMING. THE GLOBAL WARMING WAS FOLLOWED BY A SHORT COLD PERIOD. WHAT WERE THE CONTINENTS LIKE ? THE CONTINENTS HAVE BEEN BROKEN APART SINCE THE BEGINNING OF THE ERA. THE APPALACHIAN MOUNTAIN RANGE WAS FORMED ABOUT 50 MILLION YEARS AGO. IT IS ONE OF THE OLDEST MOUNTAIN RANGES ON EARTH. THE ROCKY MOUNTAINS WERE ALSO FORMED AT THIS TIME. LARGE GLACIERS COVERED CENTRAL AMERICA DURING THE BEGINNING OF THE ERA. THESE GLACIERS WERE FORMED AFTER THE COLD PERIOD. THERE WERE MANY CHANGES TO LIVING ORGANISMS THROUGHOUT THIS ERA. MULTI CELLED MARINE ORGANISMS EVOLVED INTO LARGER MARINE CREATURES. BIRDS ALSO EVOLVED INTO LARGER BIRDS KNOWN TO MAN TODAY LIKE THE BALD EAGLE AND THE PEREGRINE FALCON. THE LARGER REPTILES LIKE CROCODILES DOMINATED THE EARTH DURING THE BEGINNING OF THE CENOZOIC ERA. THE CENOZOIC ERA HAS NOT ENDED YET SO I CAN’T REALLY SAY MUCH HAPPENED AT THE END.