Children (38 direct children, 2001 direct and indirect children):
Thiaridae
(tree size 357)
Batillariidae
(tree size 40)
Pachychilidae
(tree size 309)
Potamididae
(tree size 186)
Turritellidae
(tree size 559)
Brachytrematidae
(tree size 16)
Cassiopidae
(tree size 9)
Dialidae
(tree size 55)
Diastomatidae
(tree size 20)
Eustomatidae
(tree size 4)
Ladinulidae
(tree size 1)
Lanascalidae
(tree size 1)
Maoraxidae
(tree size 1)
Metacerithiidae
(tree size 4)
Paludomidae
(tree size 224)
Popenellidae
(tree size 1)
Procerithiidae
(tree size 14)
Propupaspiridae
(tree size 1)
Prostyliferidae
(tree size 1)
Scaliolidae
(tree size 50)
Semisulcospiridae
(tree size 76)
Terebrellidae
Microstilifer
(tree size 2)
Cerithideidae
Telescopiidae
Pyrazidae
Cryptaulacidae
(tree size 25)
Ewekoroiidae
Fagotiidae
Stomatopsidae
Amphimelaniidae
Holandriana
Syrnolopsidae
Pianaridae
Faxiidae
Anaplocamidae
Lavigeriidae
Hemisinidae
(tree size 6)
Zemelanopsidae
(tree size 1)