NPCs composing that spawngroup :

greater_scalebone (90%)

undead_crusader (10%)

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

kurn_1, range=87 (87,-231,122)

greater_skeleton (100%)
greater_skeleton (100%)

kurn_5, range=87 (29,-139,106)

greater_scalebone (100%)

kurn_7, range=95 (-90,-254,3)

kurn_8, range=95 (-90,-254,4)

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

kurn_12, range=81 (50,-285,-97)

kurn_17, range=71 (60,-259,-99)

Burynai_excavator (50%)
lesser_charbone_skeleton (50%)

kurn_29, range=65 (-65,-212,3)

kurn_35, range=98 (80,-278,-99)

kurn_41, range=91 (48,-299,-97)

Burynai_sapper (100%)

kurn_42, range=47 (1,-174,-109)

kurn_43, range=96 (89,-183,-102)

kurn_70, range=97 (-72,-155,-105)

kurn_80, range=73 (-72,-208,-23)

kurn_82, range=68 (-41,-276,-23)

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

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_113, range=87 (-87,-231,-22)

Burynai_burrower (50%)
Burynai_excavator (50%)

kurn_138, range=51 (-50,-210,-23)

kurn_139, range=60 (-41,-176,-23)

kurn_140, range=89 (-56,-151,-23)

Burynai_burrower (100%)

kurn_141, range=93 (1,-128,-23)

Burynai_excavator (50%)
Burynai_Excavator (50%)

kurn_142, range=23 (-20,-208,-23)

Burynai_burrower (50%)
greater_scalebone (50%)

kurn_143, range=51 (-27,-177,-23)

kurn_144, range=82 (75,-187,-23)

kurn_145, range=79 (46,-156,-40)

Burynai_Excavator (50%)
greater_scalebone (50%)

kurn_156, range=70 (66,-197,-104)

Burynai_excavator (50%)
Burynai_sapper (50%)

kurn_157, range=64 (11,-157,-109)

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

kurn_164, range=83 (-83,-232,123)

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

kurn_166, range=64 (23,-161,132)

kurn_168, range=61 (0,-160,132)

kurn_169, range=49 (0,-270,132)

kurn_171, range=85 (-83,-200,123)

kurn_173, range=58 (-55,-201,88)

kurn_175, range=77 (52,-163,124)

kurn_176, range=69 (63,-250,124)

kurn_181, range=90 (-71,-277,4)

kurn_276925, range=49 (-50,-219,134)

greater_skeleton (90%)
undead_crusader (10%)

kurn_276926, range=27 (-28,-218,134)

greater_scalebone (90%)
undead_crusader (10%)