Children (17 direct children, 172 direct and indirect children):
Benthopecten
(tree size 30)
Cheiraster
(tree size 43)
Pectinaster
(tree size 18)
Nearchaster
(tree size 10)
Acontiaster
(tree size 1)
Gaussaster
(tree size 1)
Pontaster
(tree size 16)
Myonotus
(tree size 1)
Luidiaster
(tree size 15)
Gaussater
Benthopectininae
Paleobenthopectininae
(tree size 1)
Pontasterinae
Acantharchaster
(tree size 6)
Pararchaster
(tree size 12)
Christopheraster
Marcellaster
(tree size 1)