Children (20 direct children, 25 direct and indirect children):
Chelediscus
Acidiscus
Acimetopus
Analox
Bolboparia
Cobboldites
Litometopus
Mallagnostus
Marocconus
Meniscuchus
Ninadiscus
Oodiscus
Runcinodiscus
Stigmadiscus
Weymouthia
Weymouthia (trilobite)
Semadiscus
Bathydiscus
Tannudiscus
Serrodiscus
(tree size 5)
Morocconus