In a message dated 6/6/01 8:53:51 PM EST, Mickey_Mortimer11@email.msn.com writes: << You're aware that Gow et al. (1990) proved Massospondylus lacked a horny beak, so this character cannot be used to unite the taxon with Ornithischia? >> But as far as I know, M still has a pendant fourth trochanter.