10. Holocene
    The Holocene Epoch is a geologic period that extends from the present back about 10,000 radiocarbon years
    http: //academickids.com/encyclopedia/index.php/Hol...
    
    
11. Paleocene
    The Paleocene epoch is the first geologic epoch of the Palaeogene period in the modern Cenozoic era
    http: //academickids.com/encyclopedia/index.php/Pal...
    
    
12. Cenozoic era. The Columbia Encyclopedia, Sixth Edition. 2001
    Cenozoic era. The Columbia Encyclopedia, Sixth Edition. 2001
    http: //bartleby.com/65/ce/Cenozoic.html
    
    
13. Introduction to the Cenozoic
    The Cenozoic is the most recent of the three major subdivisions of animal history. The other two are the Paleozoic and Mesozoic. The Cenozoic spans only about 65 million years
    http: //ucmp.berkeley.edu/cenozoic/cenozoic.htm...
    
    
14. Cenozoic Era
    This is the Age of Mammals.
    http: //cotf.edu/ete/modules/msese/earthsysflr/...
    
    
15. Cenozoic era
    Cenozoic era, last major division of geologic time lasting from 65 million years ago to the present
    http: //factmonster.com/ce6/sci/A0811075.html
    
    
16. Cenozoic Era
    Pictures and information about the Cenozoic Era
    http: //facstaff.gpc.edu/~pgore/geology/geo102/ceno...
    
    
17. Eocene
    The Eocene epoch (56-34 MYA) is a major division of the geologic timescale and the second epoch of the Palaeogene period in the Cenozoic era
    http: //academickids.com/encyclopedia/index.php/Eoc...
    
    

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