Children (11 direct children, 284 direct and indirect children):
Coronarctidae
(tree size 10)
Stygarctidae
(tree size 46)
Halechiniscidae
(tree size 171)
Renaudarctidae
(tree size 5)
Batillipedidae
(tree size 37)
Archechiniscidae
Neoarctidae
(tree size 2)
Neostygarctidae
Styraconyxidae
(tree size 2)
Tanarctidae
Anisonychidae