artigos/papers Queensland Museum. South Brisbane, QUEENSLAND 4101. AUSTRALIA GAIA Nº 15, LISBOA/LISBON, DEZEMBRO/DECEMBER 1998, pp. 193-218 (ISSN: 0871-5424) Unlike the mammalian skull, of which the brain- case forms a large part, the archosaurian skull seems to consist chiefly of the feeding apparatus. Thus support of the dentition, provision of a frame- R.E. MOLNAR likely to deform and break), such analyses can illuminate details of the structure.