Works Cited
Caldwell, Roy. "The Paleozoic Era." UCMP. UCMP, 29 June 2011. Web. 14 Nov. 2014.
Ghose, Tia. "Mesozoic Era:The Age of Reptiles." Live Science. Purch, 1 Aug. 2013. Web. 18 Nov. 2014.
Hamilton, Jason. "Cenozoic Era." Science Views. Calvin and Rosanna Hamilton, n.d. Web. 10 Dec. 2014.
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Paleozoic Era. Clear Blue Sky Productions, n.d. Web. 14 Nov. 2014.
PBS. WGBH Education Foundation, n.d. Web. 18 Nov. 2014.
Polly, David. "The Mesozoic Era." UCMP. UCMP, 6 Dec. 1993. Web. 18 Nov. 2014.
"Precambrian Time." National Geographic. National Geographic Society, n.d. Web. 7 Nov. 2014.
Science Views. Calvin and Rosanna Hamilton, n.d. Web. 18 Nov. 2014.
Zimmermann, Kim Ann. "Cenozoic Era:Facts about Climate, Animals, and Plants." Live Science. Purch, 10 Oct. 2013. Web. 20 Nov. 2014.
Caldwell, Roy. "The Paleozoic Era." UCMP. UCMP, 29 June 2011. Web. 14 Nov. 2014.
Ghose, Tia. "Mesozoic Era:The Age of Reptiles." Live Science. Purch, 1 Aug. 2013. Web. 18 Nov. 2014.
Hamilton, Jason. "Cenozoic Era." Science Views. Calvin and Rosanna Hamilton, n.d. Web. 10 Dec. 2014.
- - -. "The Paleozoic Era." Science Views. Calvin and Rosanna Hamilton, n.d. Web. 14 Nov. 2014.
Paleozoic Era. Clear Blue Sky Productions, n.d. Web. 14 Nov. 2014.
PBS. WGBH Education Foundation, n.d. Web. 18 Nov. 2014.
Polly, David. "The Mesozoic Era." UCMP. UCMP, 6 Dec. 1993. Web. 18 Nov. 2014.
"Precambrian Time." National Geographic. National Geographic Society, n.d. Web. 7 Nov. 2014.
Science Views. Calvin and Rosanna Hamilton, n.d. Web. 18 Nov. 2014.
Zimmermann, Kim Ann. "Cenozoic Era:Facts about Climate, Animals, and Plants." Live Science. Purch, 10 Oct. 2013. Web. 20 Nov. 2014.