NPCs composing that spawngroup :

Burynai_Excavator (50%)

greater_scalebone (50%)

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

kurn_1, range=84 (87,-231,122)

greater_skeleton (100%)
greater_skeleton (100%)

kurn_2, range=85 (124,-191,-23)

Burynai_Excavator (50%)
Burynai_excavator (50%)

kurn_5, range=87 (103,-223,-102)

kurn_10, range=74 (87,-218,-102)

kurn_32, range=83 (128,-151,-23)

Burynai_Excavator (100%)

kurn_39, range=53 (76,-113,-105)

kurn_42, range=48 (1,-174,-109)

kurn_43, range=50 (89,-183,-102)

kurn_57, range=97 (19,-63,134)

greater_scalebone (100%)
greater_scalebone (100%)

kurn_63, range=83 (43,-73,-108)

Burynai_excavator (100%)
Burynai_excavator (100%)

kurn_69, range=65 (-7,-117,-105)

kurn_86, range=77 (10,-87,-106)

kurn_87, range=59 (71,-211,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_96, range=62 (11,-104,-40)

Burynai_Excavator (50%)
greater_skeleton (50%)

kurn_139, range=89 (-41,-176,-23)

kurn_141, range=53 (1,-128,-23)

Burynai_excavator (50%)
Burynai_Excavator (50%)

kurn_142, range=84 (-20,-208,-23)

Burynai_burrower (50%)
greater_scalebone (50%)

kurn_143, range=75 (-27,-177,-23)

kurn_144, range=42 (75,-187,-23)

kurn_146, range=38 (60,-120,-40)

kurn_156, range=45 (66,-197,-104)

Burynai_excavator (50%)
Burynai_sapper (50%)

kurn_157, range=35 (11,-157,-109)

kurn_161, range=79 (0,-221,90)

greater_scalebone (100%)

kurn_163, range=83 (-10,-218,132)

kurn_165, range=64 (34,-219,132)

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

kurn_167, range=62 (-6,-121,132)

kurn_168, range=46 (0,-160,132)

kurn_174, range=70 (45,-86,130)

kurn_175, range=9 (52,-163,124)

kurn_176, range=95 (63,-250,124)

kurn_178, range=72 (116,-175,124)

kurn_183, range=75 (-28,-170,134)

greater_skeleton (100%)
greater_skeleton (100%)