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 Nathan