Children (20 direct children, 20 direct and indirect children):
Pterosperma citriforme
Pterosperma cristatum
Pterosperma cuboides
Pterosperma dictyon
Pterosperma eurypteron
Pterosperma hemisphaericum
Pterosperma inornatum
Pterosperma joergensenii
Pterosperma jorgensenii
Pterosperma marginatum
Pterosperma moebii
Pterosperma nationalis
Pterosperma parallelum
Pterosperma polygonum
Pterosperma porosum
Pterosperma rotondum
Pterosperma undulatum
Pterosperma vanhoeffenii
Pterosperma michaelsarsii
Pterosperma ornatum