How brief was the period in which the Cambrian phyla suddenly appeared?

WINTERY KNIGHT

The Cambrian explosion refers to the sudden appearance of new body plans in the fossil record. ID proponents think that the period is between 5-10 million years at the most. Naturalists want to stretch out the period in which the body plans appear to tens of millions of years. The two sides can’t both be right. What’s the truth?

Evolution News has the answer.

Excerpt:

To establish the length of the most explosive period of innovation within the Cambrian explosion itself, Meyer cites the work of MIT geochronologist Samuel Bowring and his colleagues as well the work of another group led by Smithsonian paleontologist Douglas Erwin. The Bowring-led study showed that (in their words) “the main period of exponential diversification” within the Cambrian lasted “only 5-6 million years” (emphasis added). Meyer explains:

An analysis by MIT geochronologist Samuel Bowring has shown that the main pulse of Cambrian morphological innovation…

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About Jim & Jody

We sell real estate in the Tulsa Oklahoma area for Chinowth & Cohen Realtors. We have been selling real estate in Tulsa for about 5 years, however Jim has been in and around the Real Estate business since 1991. He is a former Broker Associate in Kansas, has earned his GRI designation, and has taken all educational requirements for appraising Real Estate. Jody has had many years experience in the Real Estate Mortgage field, and the two together have a well rounded knowledge of all aspects of the Real Estate business.
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