Children (15 direct children, 15 direct and indirect children):
Neothyonidium vultur
Neothyonidium hawaiiense
Neothyonidium dearmatus
Neothyonidium parvum
Neothyonidium inflatum
Neothyonidium dearmatum
Neothyonidium armatum
Neothyonidium minutum
Neothyonidium parvipedum
Neothyonidium magnum
Neothyonidium spiniferum
Neothyonidium intermedium
Neothyonidium insolitum
Neothyonidium arthroprocessum
Neothyonidium dissimilis