Children (7 direct children, 159 direct and indirect children):
Plumatellidae
(tree size 108)
Pectinatellidae
(tree size 7)
Lophopodidae
(tree size 17)
Cristatellidae
(tree size 3)
Fredericellidae
(tree size 11)
Stephanellidae
(tree size 4)
Tapajosellidae
(tree size 2)