Clionitidae
(tree size 8)
Arpaditidae
(tree size 10)
Thetiditidae
(tree size 36)
Steinmannitidae
(tree size 22)
Clionititidae
(tree size 11)
Metasibiritidae
(tree size 17)
Sandlingitidae
(tree size 11)
Clydonitidae
(tree size 2)