NPCs composing that spawngroup :

a_skeletal_cook (20%)

thick_boned_skeleton (80%)

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

kurn_greater_skeleton23, range=36 (-62,62,103)

kurn_scalebone_skeleton0, range=42 (-19,121,45)

scalebone_skeleton (100%)
scalebone_skeleton (100%)

kurn_greater_scalebone1, range=45 (-49,39,103)

greater_scalebone (100%)

kurn_lesser_icebone_skeleton20, range=91 (-38,-11,103)

lesser_icebone_skeleton (100%)

kurn_Burynai_excavator3, range=77 (-62,9,-30)

kurn_Burynai_sapper15, range=33 (-49,52,-39)

kurn_222212, range=57 (-83,57,3)

kurn_222694, range=97 (-105,18,-39)

kurn_222696, range=54 (-83,69,-39)

kurn_222697, range=24 (-12,63,-39)

kurn_222698, range=82 (50,60,-39)

kurn_222702, range=68 (38,70,-116)

lesser_charbone_skeleton (50%)
lesser_icebone_skeleton (50%)