Melanopsidae
(tree size 526)
Aporrhaidae
(tree size 165)
Pomatiopsidae
(tree size 372)
Cingulopsidae
(tree size 91)
Abyssochrysidae
(tree size 12)
Stiliferidae
(tree size 59)
Viviparoidea
(tree size 3)
Aporrhaiidae
Tjaernoeidae
Diastomidae
Choristeidae
(tree size 4)
Micromelaniidae
(tree size 1)
Trachysmidae