Children (25 direct children, 29 direct and indirect children):
Mediaster capensis
(tree size 2)
Mediaster boardmani
Mediaster tenellus
Mediaster ornatus
Mediaster gartrelli
Mediaster murrayi
Mediaster arcuatus
Mediaster dawsoni
Mediaster elegans
Mediaster australiensis
Mediaster sladeni
Mediaster brachiatus
Mediaster bairdi
(tree size 2)
Mediaster aequalis
Mediaster pedicellaris
Mediaster praestans
Mediaster transfuga
Mediaster mollis
Mediaster roanae
Mediaster setosus
Mediaster monacanthus
Mediaster hayi
Mediaster japonicus
Mediaster patagonicus
Mediaster roseus