Children (9 direct children, 10 direct and indirect children):
Calliostoma alertae
Otukaia blacki
Otukaia chilena
Otukaia delli
Otukaia eltanini
Otukaia crustulum
Calliotropis crustulum
Otukaia kiheiziebisu
Calliostoma kiheiziebisu
Otukaia rossica
(tree size 1)
Otukaia ikukoae
Otukaia beringensis