Pretty decent size Chris - I wouldnt eat it yet, if whats thingking, just to be safe
Google has plenty of help, as always
I just copied your words and paste, searched into Google ? came up with these, >
Im no fungi photoger tho, only on rare occassion, and never have founf,looked for there name/species, Lol
But, here you go, have a look at theses Links, within google
https://www.informationvine.com/index?qsrc=999&qo=semQuery&ad=semD& o=603073&l=sem&askid=42f4e553-8ddf-4ec7-bb20-719e571be253-0-iv_gsm&q=australian%20fungi%20ident ification&dqi=&am=modifiedbroad&an= google_s
http://www.first-nature.com/fungi/~id-guide.php
https://www.anbg.gov.au/fungi/classification-identification.html