Not a Pagoda Fungus (in which the caps are in tiers, such as you see here (http://www.anbg.gov.au/fungi/images-captions/podoserpula-pusio-0230.html ). My guess is that this is a Pluteus, based on the assumption that the pinkish areas on a couple of the underlying caps are spore deposits from the gills of the upper caps. Only a few genera produce pinkish spore prints and in Canberra you also find Entoloma (& its relatives) and Volvopluteus. It appears that the caps would originally have been grey-brown to brown, but have lost most of their colour.