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:
"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?
yikes, yes. fixing!
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