I've spent the past few months trying to get a copy of a paper by HP Paul, but I've had no luck with any of my normal sources. If anyone could help out, I'd be most grateful. The reference I have for the paper is: Limb design, function and running performance in ostrich-mimics and tyrannosaurs Paul, G.S (2000) Gaia 15, 257 - 270 Many thanks, Richard Pearce