Children (10 direct children, 310 direct and indirect children):
Sironidae
(tree size 66)
Pettalidae
(tree size 110)
Ogoveidae
(tree size 4)
Stylocellidae
(tree size 54)
Neogoveidae
(tree size 48)
Troglosironidae
(tree size 17)
Shearogovea
(tree size 1)
Sironoidea
Boreophthalmi
Sternophthalmi