[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: My Phylogeny: Growing Science (and growing e-mails)



Belated replies,

David Marjanovic (david.marjanovic@gmx.at) wrote:

<Just re-reading the description of *Sinornithosaurus*. "*Sinornithosaurus* is 
also more bird-like
[Archie-like, that is] than other non-avian theropods [...]: short ischium 
plate-like and less
than half the length of the pubis, indicating, as in *Velociraptor*^1, 
*Unenlagia*^8 and birds^3,
the absence of ischial symphysis;">

  This is such a bad reason to suggest the ischia lack a symphysis. The 
symphysis in dinosaurs is
indicated by either fusion between the elements or by a distinct facet or 
region bearing scarring
indication contact with cartilage where both ischia meet, if there is no 
fusion. Nothing else
qualifies as a symphysis.


=====
Jaime A. Headden

  Aaaaaaaaaaaaaaaaaaaahhhhhhhhhhhhhhhhhhr-gen-ti-na
  Where the Wind Comes Sweeping Down the Pampas!!!!

__________________________________________________
Do You Yahoo!?
NEW from Yahoo! GeoCities - quick and easy web site hosting, just $8.95/month.
http://geocities.yahoo.com/ps/info1