Children (19 direct children, 1933 direct and indirect children):
Philinidae
(tree size 194)
Retusidae
(tree size 180)
Aglajidae
(tree size 201)
Bullidae
(tree size 150)
Haminoeidae
(tree size 285)
Ringiculidae
(tree size 155)
Diaphanoidea
(tree size 416)
Haminoeoidea
(tree size 2)
Philinoidea
(tree size 203)
Cylichnium
(tree size 14)
Bulloidea
(tree size 93)
Gasteropteridae
(tree size 2)
Atydidae
(tree size 3)
Notodiaphanidae
(tree size 3)
Newnesioidea
(tree size 3)
Cylichnoidea
(tree size 5)
Philinacea
Pseudocassis
(tree size 1)
Ceritella
(tree size 4)