NPCs composing that spawngroup :

Burynai_Excavator (100%)

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

kurn_7, range=78 (-225,-138,-22)

kurn_9, range=75 (-228,15,-23)

scalebone_skeleton (100%)

kurn_11, range=63 (-172,-30,4)

greater_scalebone (50%)
greater_skeleton (50%)

kurn_21, range=76 (-160,-95,-119)

kurn_23, range=44 (-246,-101,-123)

kurn_111, range=92 (-146,-18,-23)

Burynai_Excavator (100%)

kurn_112, range=58 (-248,-5,-23)

kurn_118, range=44 (-250,-21,-23)

kurn_125, range=73 (-186,0,-23)

kurn_154, range=69 (-164,-32,-23)

Burynai_Excavator (50%)
Burynai_excavator (50%)

kurn_158, range=45 (-184,-69,-23)

kurn_159, range=68 (-164,-85,-23)

kurn_160, range=50 (-183,-38,6)

greater_skeleton (100%)