[Junior]

Why would the Cambrian explosion give us fits? You don't make any sense. As for your contention that no new Phyla have come into being in 580 million years, I'm not sure how accurate that is, but I do know that multitudes of species and genuses have come and gone in that time. Are you pushing "macro" evolution back to the phylum level?

[That Subliminal Kid]

It's a widely accepted fact that no new phyla have emerged in approximately 580 million years. If you do a quick search you'll probably find this information as it's published in most college texts.

If you don't know why the Cambrian Explosion gives evolutionists fits, then you must not be aware of the bruhaha caused by Steve Gould after he put forward his punctuated equillibrium variation of evolution, and following this the evolutionary scientists basically split into two sub-groups, one with Gould, and one with Dawkins. To this day they fight like cats over the mechanisms and the rates of evolution. Steve once said "neo-Darwinism is effectively dead" and months later recanted his assertion after experiencing the full fury of the scientific establishment. These are all well documented facts. I'm surprised they're not in your "Ultimate" list.