NPCs composing that spawngroup :

Burynai_Excavator (25%)

Burynai_Excavator (25%)

Burynai_Excavator (25%)

greater_skeleton (25%)

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

kurn_1, range=90 (-111,-123,6)

greater_skeleton (100%)

kurn_7, range=80 (-225,-138,-22)

kurn_9, range=95 (-228,15,-23)

scalebone_skeleton (100%)

kurn_11, range=40 (-172,-30,4)

greater_scalebone (50%)
greater_skeleton (50%)

kurn_19, range=73 (-143,-130,-117)

kurn_20, range=94 (-138,-151,-117)

kurn_21, range=35 (-160,-95,-119)

kurn_23, range=69 (-246,-101,-123)

kurn_111, range=64 (-146,-18,-23)

Burynai_Excavator (100%)

kurn_112, range=90 (-248,-5,-23)

kurn_113, range=86 (-114,-19,-22)

Burynai_burrower (50%)
Burynai_excavator (50%)

kurn_118, range=81 (-250,-21,-23)

kurn_125, range=69 (-186,0,-23)

kurn_129, range=44 (-228,-60,-23)

Burynai_Excavator (100%)

kurn_135, range=99 (-138,19,-39)

kurn_154, range=42 (-164,-32,-23)

Burynai_Excavator (50%)
Burynai_excavator (50%)

kurn_159, range=25 (-164,-85,-23)

kurn_160, range=31 (-183,-38,6)

greater_skeleton (100%)

kurn_183, range=59 (-126,-57,48)

greater_skeleton (100%)