Hi Aaron - I dont think this is Artomyces, which is a coral fungus that is always on wood, and it wont be A. turgidus, which I dont think occurs in Australia. If you look at Google images for Artomyces turgidus (https://www.google.com.au/search?q=artomyces+turgidus&source=lnms&tbm=isch&sa=X&ved=0CAcQ_AUoAWoVChMIhvPwpd7kxgIVJ1CmCh1icwIy&biw=2183&bih=1098&dpr=0.83) you can see how this images looks out of place. It could a bit immature, so hard to give an accurate id, but could be Ramaria.
Hi Tom, Ahhh. Thanks for pointing this out. I've removed the ID on this sighting so it's now back to Unidentified and I'm going to mark it as Inconclusive based on your advice. Cheers Aaron.