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Re: Post K-T non-avian dinosaurs (was K-T selection event)
> I've often wondered if there was any chance that dinosaurs (other
> than birds) did in fact hang on in certain locations post K-T, in
> terrain totally unsuitable for fossilization? I'm not talking
> Nessie here, folks. Has this been discussed at all?
I think this is really plausible, but we really don't know anything
about it, so what to discuss about?
However, in paleontology there is the phenomenon of a
"Lazarus-taxon", i.e. the find of remains of a representative of a certain
strata (sometimes much) younger than those of the until then last known member
of that taxon, thus extending the record of it "forward" in time.
A nice example of it is the find of a Miocene (or was it Pliocene?)
choristodere, which were until then thought to be extinct by the end
of the Eocene (read this somewhere in Evolutionary Biology I think),
and of course the discovery of the extant Latimeria (which is now
prone to extinction just to mention...). So perhaps one day we will
hear of the find of a non-avian dinosaur in Paleocene or Eocene
strata (it seems unplausible they made it into the late Paleogene
(with G), which was already a very different world as the Mesozoic).