NPCs composing that spawngroup :

greater_skeleton (50%)

greater_skeleton (50%)

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

kurn_1, range=61 (-121,-186,6)

greater_skeleton (100%)

kurn_3, range=99 (-73,-311,-23)

kurn_7, range=48 (-90,-254,3)

kurn_8, range=97 (-142,-272,4)

kurn_20, range=95 (-138,-151,-117)

kurn_27, range=84 (-149,-208,-23)

kurn_42, range=76 (1,-174,-109)

kurn_70, range=57 (-72,-155,-105)

kurn_73, range=47 (-108,-233,-23)

kurn_80, range=8 (-72,-208,-23)

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

kurn_83, range=98 (-58,-310,-23)

kurn_113, range=29 (-87,-231,-22)

Burynai_burrower (50%)
Burynai_excavator (50%)

kurn_130, range=82 (-143,-238,-23)

kurn_131, range=70 (-108,-268,-23)

kurn_138, range=15 (-50,-210,-23)

kurn_139, range=43 (-41,-176,-23)

kurn_140, range=61 (-56,-151,-23)

Burynai_burrower (100%)

kurn_142, range=45 (-20,-208,-23)

Burynai_burrower (50%)
greater_scalebone (50%)

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

kurn_157, range=93 (11,-157,-109)

kurn_161, range=65 (0,-221,90)

greater_scalebone (90%)
undead_crusader (10%)

kurn_162, range=92 (-48,-121,132)

kurn_163, range=55 (-10,-218,132)

kurn_164, range=26 (-83,-232,123)

kurn_165, range=99 (34,-219,132)

kurn_168, range=83 (0,-160,132)

kurn_169, range=87 (0,-270,132)

kurn_171, range=21 (-83,-200,123)

kurn_172, range=58 (-89,-159,88)

kurn_173, range=14 (-55,-201,88)

kurn_181, range=65 (-71,-277,4)

kurn_276925, range=16 (-50,-219,134)

greater_skeleton (90%)
undead_crusader (10%)

kurn_276926, range=37 (-28,-218,134)

greater_scalebone (90%)
undead_crusader (10%)