Children (12 direct children, 12 direct and indirect children):
Sigapatella novaezelandiae
Sigapatella superstes
Sigapatella tenuis
Sigapatella terraenovae
Sigapatella spadicea
Sigapatella nukumaruana
Sigapatella ohopeana
Sigapatella calyptraeformis
Sigapatella hedleyi
Sigapatella aperta
Sigapatella montensis
Sigapatella tatei