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Re: Sengis (was RE: Pterosaur diversity (was: Re: Waimanu))
On 6/2/06, Thomas R. Holtz, Jr. <firstname.lastname@example.org> wrote:
> From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu]On Behalf Of
> Tim Williams
> Nick Pharris wrote:
> >After all, look what's happened to elephant shrews over the years.
> OK, I've racked my brains and I still can't figure it out... Nick, what
> happened to elephant shrews?
Sengis (the newer preferred vernacular name for "elephant shrews") have been
allied with Insectivora (in the classic sense), Glires,
Ungulates (in the classic sense), and primates. Molecular data strongly support
them as afrotheres.
Yes, but this doesn't mean they've gotten smaller over time (which is
what I think Nick was saying), does it? Among afrotheres, only
tubulidentates (aardvarks) and tethytheres (sea cows + elephants) are
large (and hyracoids are kind of medium-sized). It seems to me the
ancestral afrotheres would probably have been the size of
macroscelideans (sengis) and afrosoricidans (golden moles + tenrecs),
i.e., fairly small.
Or are there large fossil macroscelideans?
The Dinosauricon: http://dino.lm.com
Parry & Carney: http://parryandcarney.com