This notion was originally formed due to the fact that neither crocodilians nor birds (the two extant groups of archosauromorphs) possess such an organ. However, Ezcurra notes that both of these groups have specialized modes of life which may have caused the organ to have been lost. If they are parts of the olfactory bulbs, then "Tasmaniosaurus" would have had a superb sense of smell. It has been noted that aquatic animals have generally diminished olfactory capabilities compared to their terrestrial counterparts. Thus, this interpretation significantly lowers the likelihood that "Tasmaniosaurus" or its relatives (such as proterosuchids) were mainly aquatic. Other sources have also supported the idea that proterosuchids were terrestrial rather than aquatic or semiaquatic. The specimen of "Tasmaniosaurus" also preserved a bone from another animal: a maxilla complete with teeth. This maxilla was originally interpreted as belonging to a temnospondyl amphibian. It was believed to have been a piece of gut content, the only known example of such preserved in a "proterosuchid". However, Ezcurra noted that several aspects of the specimen's preservation makes this assignment uncertain at best. In addition, he noted that the maxilla had a relatively low number of teeth compared to temnospondyls, and that it also had an ascending process which may have been the front edge of an antorbital fenestra. These factors made it much more likely that the maxilla belonged to a small archosauriform or potentially even a juvenile specimen of "Tasmaniosaurus" itself. Identification to any particular group is uncertain, but according to Ezcurra it is unlikely that the creature which the bone belonged to was a meal of "Tasmaniosaurus". Nevertheless, the curved and serrated teeth of "Tasmaniosaurus" means that it is practically certain that it was a carnivore of some sort.