Children (9 direct children, 617 direct and indirect children):
Synaptidae
(tree size 333)
Myriotrochidae
(tree size 91)
Chiridotidae
(tree size 178)
Paleochiridotidae
(tree size 2)
Theelidae
(tree size 1)
Achistridae
(tree size 2)
Calcancoridae
(tree size 1)
Theeliidae
Synaptitidae