Links+Bibliography

= ** Works cited  ** =

BBC. "Cambrian Period." //BBC Nature Prehistoric Life//. British Broadcasting Company. Web. 10 Jan. 2012. .

"Evolution: Library: The Cambrian Explosion." //PBS: Public Broadcasting Service//. Web. 10 Jan. 2012. .

Geographic, National. "Cambrian Period, Cambrian Explosion Information, Prehistoric Facts -- National Geographic." //Science and Space Facts, Science and Space, Human Body, Health, Earth, Human Disease - National Geographic//. Web. 10 Jan. 2012. .

"Jellyfish." //Enchanted Learning//. Enchantedlearning.com. Web. 10 Jan. 2012. .

"Paradoxides." //Fossils Geological Time and Evolution//. Web. 10 Jan. 2012. .

"The Wonders of the Seas: Mollusks." //Oceanic Research Group//. Web. 10 Jan. 2012. .