I'm surprised how much credence Nature gives to "preliminary
analysis" by Gerta Keller, who's been trying to find a way to move
Chicxulub off the KT boundary for well over a decade. It wouldn't be
terribly surprising to see some microfossils in unconsolidated
sediment redeposited into a large hole in the continental shelf. At
this point, the debate has reached the point where I would expect
extraordinary evidence to be needed to show the microfossils
definitely were deposited between the impact and the KT. Otherwise,
it's about as conclusive as dinosaur teeth found after the KT. --
Jeff Hecht
At 1:38 PM -0400 4/14/03, John Bois wrote:
Drilling at Yucatan reveal, they say, microfossils 300,000 years after
supposed extinction: