Unsure what this is but possibly Xylodon 'Schizopora group.' Thanks to Barbara for the initial sighting. (See additional close-up detail under sighting 4680337).
Your suggested Xylodon has irregular/jagged-edged pores. This fungus has separate, well-defined 'teeth' or blunt spines - obviously closely packed. There are several genera of such toothed fungi. When I look at the enlarged version of you main photo the teeth seem a little fuzzy - which suggests that there are numerous microscopic organs called cystidia poking out from the surfaces of those teeth. Such a feature would narrow the number of possible genera but I can't yet restrict myself to just one genus.
@Heinol Thanks for the comments. The 'teeth' were fuzzy as you mention. The next time I visit this area I'll get some 5X close-up images to help with identification.
@Heinol Do I need a permit to take a small specimen if I happen to see this particular fungus again? If it's ok to take a small specimen, what should it include and how stored? In a zip lock bag?
This is the first record of Hyphodontia arguta for the ACT. Given that it is here I am curious to see if any specimens of this species are present in the herbarium’s unidentified ACT Hyphodontia collections. I am able to identify this sighting only because I have examined a small piece of the fungus shown here and (for the corticioidally minded) note that I found: lagenocystidia and capitate cystidia abundant (the latter sometimes more like hyphae with swollen apices); clamps present; spores smooth, thin-walled, approx 6 x 4 micrometres; no reaction in Melzer’s reagent.