TNZ wrote:
"As a memory aid you could say the Cretaceous lasted half the time between 130,000,000 years ago and today, ie began then and lasted until 65,000,000 years ago."

When multiple parts of the geological and biological record converge on 65M years ago there is reason to consider it not being a coincidence.

The fact that the eruptions started earlier does not mean they didn't get a good solid kick out of the earth being whacked. Consider the difference between stepping on an open and a closed tube of toothpaste. If the eruptions were already ongoing ... then there was already a path easily accessed to relieve the pressure.

I guess I'm not much of a believer in coincidence.

DA Morgan