For the benefit of other NatureMapr users, I have been in touch with Wendy about this sighting and I suspect it is either Mycenastrum corium or a species of Gastropila (perhaps Gastropila fragilis). They can be confused macroscopically and both are known from a number of countries. The latter would be very interesting since I know of only three reports of Gastropila from Australia. The same comment applies to Scleroderma sp. and Scleroderma sp.