[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Before I get too much of reputation as a "mad" lumper (although I do
admit to being on the lumper side of the spectrum), I would like to bring up
the subject of Alvarezsauridae.
I've always suspected that lumping Alvarezsaurus and Mononykines in the
same family was perhaps not such a good idea. It seems like once this was
done, most people started to treat it as a unit, rather than possible
So my two questions are:
(1) Is the evidence for a holophyletic Alvarezsauridae really all that
strong? [After all, Alvarezsaurus is kind of "scrappy" isn't it].
(2) If it isn't really holophyletic, could this perhaps explain why it
jumps around Maniraptoriform phylogenies so much (sort of like a barefoot
kid in an asphalt parking lot on a hot summer's afternoon). Just wondering
if splitting up Alvarezsauridae (like putting shoes on the kid) might make
it less phylogenetically jumpy.
-----Shifting to splitting mode?,
Get your FREE download of MSN Explorer at http://explorer.msn.com