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| Cambrian Explosion, pg. 85 | ||
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| Unique Body Plans, pp. 86-87 | ||
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| Wiwaxia, pg. 87 | ||
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| Guppies, pg. 91 |
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Geiger Content by: David J. Bottjer/ Richard C. Deonier and Edward J. Rhodes Jr. Created 2.13.98 - Last updated 2.17.98 ©USC All Rights Reserved URL: http://www.usc.edu/dept/mda/180evolution |