Children (16 direct children, 16 direct and indirect children):
Peponocyathus folliculus
Peponocyathus minimus
Peponocyathus dawsoni
Peponocyathus investigatoris
Peponocyathus hoelzli
Peponocyathus michelottii
Peponocyathus orbignyanus
Peponocyathus ottnangensis
Peponocyathus pateriformis
Peponocyathus pseudoduncani
Peponocyathus stimpsonii
Peponocyathus variabilis
Peponocyathus vaughanianus
Peponocyathus astericus
Peponocyathus australiensis
Peponocyathus cylindricus