NPCs composing that spawngroup :

Braxter (100%)

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

kurn_9, range=33 (-228,15,-23)

scalebone_skeleton (100%)

kurn_11, range=90 (-172,-30,4)

greater_scalebone (60%)
greater_skeleton (60%)

kurn_112, range=10 (-248,-5,-23)

kurn_118, range=22 (-250,-21,-23)

kurn_125, range=71 (-186,0,-23)

kurn_129, range=66 (-228,-60,-23)

Burynai_Excavator (100%)

kurn_154, range=98 (-164,-32,-23)

Burynai_Excavator (60%)
Burynai_excavator (60%)

kurn_160, range=83 (-183,-38,6)

greater_skeleton (100%)

kurn_179, range=92 (-170,31,4)