Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
Looks like it might be a Coprinus
University of Edinburgh and Biodiversity Observatory (OU)
Pretty sure you are right C atramentarius would be my suggestion.
Thanks. I've given that a shot. Lets see who agrees.
Lat/Lng: 54.70708, -1.68445
OS grid ref: NZ204347