Wednesday, March 28, 2007

Modern Mammals didn't Immediately Benefit from KT Event

The big dinosaur extinction of 65 million years ago didn't produce a flurry of new species in the ancestry of modern mammals after all, says a huge study that challenges a long-standing theory.

Scientists who constructed a massive evolutionary family tree for mammals found no sign of such a burst of new species at that time among the ancestors of present-day animals.

Only mammals with no modern-day descendants showed that effect.

It's not necessarily the last word in this subject, but a first step. it shouldn't be too much of a surprise that the Paleogene (edtd) was the Cenozoic Triassic in certain ways.



2 comments:

Anonymous said...

"It's not necessarily the last word in this subject, but a first step. it shouldn't be too much of a surprise that the Neogene was the Cenozoic Triassic in certain ways."

"coughcough" you mean Paleogene of course?

Will Baird said...

yikes, yes. fixing!