NPCs composing that spawngroup :

greater_skeleton (100%)

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

kurn_2, range=55 (124,-191,-23)

Burynai_Excavator (50%)
Burynai_excavator (50%)

kurn_5, range=18 (103,-223,-102)

greater_scalebone (100%)

kurn_10, range=13 (87,-218,-102)

kurn_12, range=65 (50,-285,-97)

kurn_17, range=38 (60,-259,-99)

Burynai_excavator (50%)
lesser_charbone_skeleton (50%)

kurn_32, range=90 (128,-151,-23)

Burynai_Excavator (100%)

kurn_33, range=85 (172,-225,-102)

Burynai_sapper (100%)

kurn_35, range=47 (80,-278,-99)

kurn_41, range=77 (48,-299,-97)

Burynai_sapper (100%)

kurn_43, range=48 (89,-183,-102)

kurn_81, range=99 (174,-280,-23)

kurn_87, range=26 (71,-211,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_89, range=76 (151,-190,-25)

kurn_144, range=45 (75,-187,-23)

kurn_145, range=85 (46,-156,-40)

Burynai_Excavator (50%)
greater_scalebone (50%)

kurn_156, range=40 (66,-197,-104)

Burynai_excavator (50%)
Burynai_sapper (50%)

kurn_161, range=87 (0,-221,90)

greater_scalebone (100%)

kurn_163, range=97 (-10,-218,132)

kurn_165, range=54 (34,-219,132)

kurn_166, range=94 (23,-161,132)

kurn_169, range=95 (0,-270,132)

kurn_175, range=76 (52,-163,124)

kurn_176, range=30 (63,-250,124)

kurn_178, range=63 (116,-175,124)