Explanations for the Cambrian Explosion

Hello AOK, Conversely however, it also means you have 2.1Byrs for fossils to be destroyed. Those global erosion and depository processes are just as adapt at destroying the fossil record as they are for perserving it.Edited by rueh, : No reason given.

Don't change the goal posts now AOK. You wanted a explanation for why less fossils are perserved in the precambrian than other epochs. Well that is one possible solution to the delema. If more fossils are destroyed each year than the farther back you go the less fossils you should find. This process does not have to be uniform throughout the geological column, just because of the sheer number of variables to preserve fossils and keep them preserved. Edited by rueh, : No reason given.

hello AOK.
First off let me say I am sorry if my reply earlier was a little short, been kinda rough week. Why would it have to fall under one or the other. I believe it is entirely possible that the Earth has periods of more and less active tetonic movements, while still appearing to have an average movement rate. In which case it is still just a matter of how long ago a life form died and the odds of fossilized remains surviving to this day. With the odds ever decreasing, that older forms of life remain in tact. The odds even with uniformitarianism are still bad when comparing an event that occured 2,100,000,000 years ago to one that happened 500,000,000 years ago.