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RE: Questions of Various Kinds

 From:  RaptorRKC@aol.com[SMTP:RaptorRKC@aol.com]

>6) Did sauropods have any kind of non-bony dorsal spines?

There are fossilized imprints of dermal spines on sauropods from the
Howe Quarry in Wyoming.   See the following article:

Czerkas, S. A.  1992.  Discovery of dermal spines reveals a new look for
sauropod dinosaurs.  Geology, Vol 20, p1068-1070