Children (7 direct children, 212 direct and indirect children):
Mellitidae
(tree size 63)
Astriclypeidae
(tree size 52)
Scutellidae
(tree size 51)
Dendrasteridae
(tree size 16)
Abertellidae
(tree size 11)
Monophorasteridae
(tree size 9)
Scutasteridae
(tree size 3)