Unknown Puffball help please.

[Quin]

Hi All,

I was out walking on pasture today and came across these. I am unsure if they are Soft or Stump Puffballs or another Puffball entirely! They were growing at the very edge of the field and quite close by were definitely some Stump Puffballs as they were growing on actual wood. I know that Stump Puffballs can seem to be growing from grass but be connected by the mycelial cords to wood.

Any help would be greatly appreciated!

Thanks,
Quin