NPCs composing that spawngroup :

an_undead_jester (20%)

lesser_icebone_skeleton (30%)

thick_boned_skeleton (50%)

NPCs spawning around that spawngroup :
(Max range : 100)

kurn_greater_skeleton23, range=44 (93,73,103)

kurn_scalebone_skeleton0, range=44 (93,48,103)

kurn_greater_scalebone1, range=77 (113,15,-39)

greater_scalebone (100%)

kurn_lesser_icebone_skeleton20, range=60 (82,111,-39)

lesser_icebone_skeleton (100%)

kurn_Burynai_excavator3, range=79 (24,-15,-39)

kurn_Burynai_sapper15, range=99 (-49,52,-39)

kurn_222211, range=82 (-30,80,-39)

a_skeletal_cook (20%)
thick_boned_skeleton (80%)

kurn_222212, range=89 (82,144,3)

kurn_222694, range=80 (22,-16,-118)

kurn_222697, range=65 (-8,29,-116)

kurn_222702, range=15 (38,70,-116)

lesser_charbone_skeleton (50%)
lesser_icebone_skeleton (50%)