I didn’t include the full narrative, but they (MN Wolf Center) are stating the top right plate shows “berserkers … dressed in wolf helmets”.
As Vincent noted, several clues are driving my determination of boar helmet crests. Namely: the curved tusk near the rear of the mouth, curly boar-like tail, the crest of short hairs starting at the shoulders, short & powerful legs, and a pig-like snout.
I understand the artist(s) who created these dies are not trying to be anatomically correct, just look at the depiction of “bears” in the top left plate. That being said, the plate in question sure depicts boar crested helmets to me.