More Denton: Reply to Tony (Introduction)

by David Turell , Wednesday, July 29, 2015, 22:35 (3405 days ago) @ dhw


> dhw: This is a tricky conversation, as my comment was directed towards David, who believes in common descent, as I do. By “speciation” I only meant that the different species appeared, and as there are no known precursors, David and I must assume that the changes to existing organisms took place during the 5-10 million years.-Please do not speak for me as I do not accept your view of the Cambrian. The various specimens from that time show complete intact animals of various types, but no variation within the types as if small adjustments were being made over a 5-10 million years period as you imply. From after the Cambrian on forward there are small changes to arrive at today's animals. But the animals arrive de novo in the particular layer they appear to arrive in within the Cambrian. Trilobites arrive as Trilobites intact, and become something else later. There are no pre-Trilobites with alterations either in the Cambrian or before.