Re: Evolution milestones (please check the values)

["David Marjanovic" <david.marjanovic@gmx.at>]

> >> Metazoa cca 0.7 Ga ago (?)
> >1.1 Ga (worm traces of Chorhat).
>
> Pretty sure Nick Butterfield is working on material that's more like 1.5Ga

Wow!

> >> Primates cca 75 Ma ago
> >
> >No, fewer than 65.
>
> Isn't there something called Purgatorius that's supposed to be about 75Ma?

This is one single tooth that was found in a sieve which had previously been
used to screenwash Paleocene sediments, in which *Purgatorius* is quite
common. In other words: I don't believe it.
http://www.dinosauria.com/jdp/misc/hellcreek.html#mammals (Even though
plesiadapiforms like *P.* do seem to be primates now.)