Children (9 direct children, 271 direct and indirect children):
Polyphysaceae
(tree size 32)
Dasycladaceae
(tree size 207)
Medusagraptus
Receptaculitidae
(tree size 1)
Triploporellaceae
(tree size 18)
Diploporaceae
(tree size 4)
Acetabulariaceae
Seletonellaceae
Beresellaceae