Children (15 direct children, 1564 direct and indirect children):
Ophidiasteridae
(tree size 253)
Solasteridae
(tree size 106)
Asteropseidae
(tree size 21)
Leilasteridae
(tree size 6)
Ganeriidae
(tree size 43)
Asterodiscididae
(tree size 32)
Granulosina
(tree size 1019)
Archasteridae
(tree size 21)
Chaetasteridae
(tree size 7)
Podosphaerasteridae
(tree size 7)
Acanthasteridae
(tree size 10)
Stauranderasteridae
(tree size 22)
Tumulosina
(tree size 2)
Pycinasteridae
Goniasteroidea