From: "Williams, Tim" <TiJaWi@agron.iastate.edu> > Certain taxa lost the SLC altogether - either through degeneration or by > absorption into a coossified structure (e.g. alvarezsaurids, birds). > OK, I see now, thanks, and thanks also for the list of taxa and their diet. Friendly - Luc J. "Aspidel" BAILLY.