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MAMMAL NECK VERTS
Matt Bonnan wrote...
> All mammals have only 7 cervical vertebrae
_Giraffa_ has 8 - some sloths and sirenians have anything between 5
and 9! However, these are like four exceptions out of at least 5000
species (that's the 4500-odd extant mammals plus some of the better
known fossil ones).
Regarding neck mobility in non-diplodocoid sauropods, Kent Stevens
presented new work on _Brachiosaurus_ and a long-necked
euhelopodid (can't remember which genus - probably _Euhelopus_) at
the SVPCA meeting in Edinburgh last year. I briefly wrote this up for
DML so it's in the archives somewhere. I don't know how long it is
before this sees publication. As well as Jeff Wilson's objections
mentioned at SVP in Denver, Paul Upchurch had a www
communication to _Science_ about the Parrish and Stevens' study.
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