<div>CENOZOIC ERA</div><div><br></div><div>Is from 65 million years ago to the nowadays.</div>
<div>TERTIARY PERIOD:</div><div>TIME: Is from 65 million years ago to 1'8 million years ago.</div><div><br></div><div>CLIMATIC AND GEOLOGICAL CHARACTERISTICS.</div><div><br></div><div>CLIMATIC:</div><div>-At the begining, Earth has a warm and humid climate, but from the Oligocene begins to cool.</div><div>-At the end of the period Antarctica freezes.</div><div>-The weather cools and appear</div><div>glaciations.</div><div><br></div><div>GEOLOGICAL:</div><div>-At this time the Alpine folding occurs, which was creator of large chains</div><div>mountains like the Alps,the Atlas and the Himalayas.</div><div>-Acquire continents,gradually, appearance and</div><div>current situation though,at first,the Atlantic Ocean was much more</div><div>narrow and what is now the Indian peninsula was "traveling" from the</div><div>southeast Africato, its current location.</div><div><br></div><div>LIVING BEINGS:</div><div>-The most characteristic invertebrates were numulitas.</div><div>-Mammals evolved and could conquer the Earth.</div><div>-Birds lost teeth and got a lighter skeleton, which facilitated their flight.</div>
<div>QUATERNARY PERIOD</div><div><br></div><div>TIME: Is from 1'8 millions years ago to nowadays.</div><div><br></div><div>MAIN GEOLOGICAL PROCESSES:</div><div>-Throughout this stage,and nowadays, continues the movement of litospheric plates.</div><div><br></div><div>CLIMATE:</div><div>-Its main characteristic is the decrease in the average temperature of the Earth, which led to big glaciations.</div><div><br></div><div>LIVING BEINGS:</div><div>-No new forms of life,but the existing evolved until nowadays.</div><div>-It takes place the evolution of the human species.</div>