Children (26 direct children, 26 direct and indirect children):
Frontonia acuminata
Frontonia leucas
Frontonia marina
Frontonia frigida
Frontonia lynni
Frontonia microstoma
Frontonia ocularis
Frontonia schaefferi
Frontonia aberrans
Frontonia algivora
Frontonia arenaria
Frontonia atra
Frontonia bullingtoni
Frontonia caneti
Frontonia didieri
Frontonia elliptica
Frontonia elongata
Frontonia fusca
Frontonia macrostoma
Frontonia maris-alba
Frontonia multinucleata
Frontonia nigricans
Frontonia pallida
Frontonia sinica
Frontonia tchibisovae
Frontonia vacuolata