Talk:Cambrian explosion

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The Cambrian Explosion is the term used to define the relatively sudden fossil appearance of new animal species and body forms in the geologic record.

The Cambrian Explosion defies modern evolutionary theory of gradual descent through mutations and natural selection from one common ancestor, because the fossil record should then show simplest life forms at the bottom, and a slow upward chain of complexity building upwards. A sudden appearance is indicative of a sudden creation.