Children (10 direct children, 10 direct and indirect children):
Pillsburiaster ernesti
Pillsburiaster annandalei
Pillsburiaster calvus
Pillsburiaster maini
Pillsburiaster indutilis
Pillsburiaster aoteanus
Pillsburiaster geographicus
Pillsburiaster döderleini
Pillsburiaster investigatoris
Pillsburiaster cuenoti