Children (19 direct children, 176 direct and indirect children):
Lloydolithus
Anomocaridae
(tree size 1)
Anomocaroidea
(tree size 8)
Cyclopygoidea
(tree size 28)
Dikelocephalidae
(tree size 2)
Dikelokephaloidea
(tree size 4)
Monkaspididae
Ptychaspididae
Remopleuridioidea
(tree size 14)
Rhyssometopidae
Ceratolithus
Priceaspis
Asaphoidea
(tree size 43)
Trinucleina
(tree size 56)
Dikelocephaloidea
Remopleuridae
Richardsonellidae
Dikelocephalinidae
Dikelocephalacea
(tree size 1)