NPCs composing that spawngroup :

greater_skeleton (33%)

greater_skeleton (33%)

lesser_icebone_skeleton (34%)

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

kurn_4, range=44 (15,-58,127)

an_odd_mole (100%)

kurn_8, range=88 (99,9,4)

kurn_9, range=29 (0,13,3)

scalebone_skeleton (100%)

kurn_18, range=93 (-70,30,-39)

Burynai_excavator (100%)

kurn_44, range=47 (-9,29,-116)

kurn_57, range=50 (19,-63,134)

greater_scalebone (100%)

kurn_63, range=67 (43,-73,-108)

Burynai_excavator (100%)

kurn_68, range=9 (22,-17,-118)

kurn_71, range=82 (-41,-75,-107)

kurn_74, range=86 (38,70,-116)

kurn_86, range=74 (10,-87,-106)

kurn_91, range=47 (-30,8,-39)

kurn_92, range=44 (11,-57,-39)

kurn_93, range=40 (29,-50,-39)

Burynai_excavator (100%)

kurn_94, range=54 (67,-19,-39)

kurn_96, range=91 (11,-104,-40)

Burynai_Excavator (50%)
greater_skeleton (50%)

kurn_98, range=96 (104,-44,-49)

kurn_117, range=83 (-31,-85,-30)

Burynai_Excavator (50%)
Burynai_Excavator (50%)

kurn_132, range=85 (-8,70,-39)

Burynai_excavator (50%)
Burynai_sapper (50%)

kurn_149, range=79 (-63,9,-30)

kurn_153, range=75 (-62,-10,-30)

kurn_160, range=67 (-53,1,9)

greater_skeleton (100%)
greater_skeleton (100%)

kurn_166, range=81 (-50,39,104)

kurn_170, range=34 (22,-46,131)

kurn_174, range=79 (45,-86,130)

kurn_180, range=76 (81,-49,129)

a_skeletal_cook (25%)
thick_boned_skeleton (75%)

kurn_183, range=90 (-62,-65,129)

greater_skeleton (100%)
greater_skeleton (100%)

kurn_185, range=52 (-39,-12,104)

kurn_186, range=73 (-58,-30,104)

kurn_188, range=49 (-13,29,104)

greater_skeleton (50%)
scalebone_skeleton (50%)

kurn_192, range=46 (0,31,-39)

fingered_skeleton (20%)
thick_boned_skeleton (80%)

kurn_193, range=64 (-35,31,-39)

thick_boned_skeleton (100%)