Re: Antarctosaurus

["Jerry D. Harris" <LOKICORP@compuserve.com>]

Message text written by "Ray Stanford"
>Someone please correct me if I'm wrong, but that seemingly refers to the
coracoid, which, named in combination with the scapula is the
scapulocoracoid.  Supra- means ABOVE (above the scapula in this case), so
it
must be another term for the coracoid. Thus, if one is measuring the
scapulocoracoid, then one is measuring the combination of the scapula and
the "supra-scapula" (coracoid, which juxtaposes the proximal end of the
scapula).<

        I'm not aware of any dinosaur that has a true, ossified
suprascapula, but many more primitive reptiles do.  It is _not_ the
coracoid; it is a separate ossification that occurs distal to the distal
end of the scapular blade.  The coracoid is located at the proximal end of
the scapula -- in primitive reptile pectoral orientations, it would be,
more or less, ventral and somewhat medial to the scapula; in dinosaurs, it
is proximoventromedial to the scapula.

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                     Jerry D. Harris
                 Fossil Preparation Lab
          New Mexico Museum of Natural History
                   1801 Mountain Rd NW
               Albuquerque  NM  87104-1375
                 Phone:  (505) 841-2809
                  Fax: ; (505) 841-2808
                LOKICORP@compuserve.com