From the NY Times via BioCreativity.
I have not seen the original article, but I suspect they are excluding the megafauna that was wiped between 25k to 10k years ago. From the paleo POV - and the likely cause *cough*us*cough* - this is the same mass extinction that's on a roll. 25k years is hard to distinguish in the geological record. 10k is about as fine grained as you get. Esp when compared to the other mass extinctions.
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