Phenacohelix
(tree size 13)
Hirsutodiscus
(tree size 1)
Costallodiscus
(tree size 3)
Allodiscus
(tree size 54)
Thalassohelix
(tree size 11)
Canallodiscus
(tree size 3)
Granallodiscus
(tree size 3)
Charopa
(tree size 31)
Ranfurlya
(tree size 1)
Vatusila
(tree size 6)
Maafu
(tree size 1)
Lagivala
(tree size 6)
Andrefrancia
Acanthoptyx
Acheronopa
Albiropa
Amfractaropa
Ballena
Barringtonica
Burwellia
Cancellocochlea
Comboynea
Comularopa
Coricudgia
Corinomala
Cumberlandica
Deceptrena
Decoriropa
Dictyoropa
Diphyoropa
Dividospiralia
Egilodonta
Eungellaropa
Excaliburopa
Gouldiropa
Graeffedon
Groveiana
Hedleyropa
Hirsutaropa
Howeinsulea
Huntiana
Hyaloropa
Insularopa
Isolderopa
Kannaropa
Koreelahropa
Kosciuszkoropa
Lacuropa
Leurocochlea
Lidgbirdia
Luturopa
Macleayropa
Macphersonea
Macrophallikoropa
Marilyniropa
Meredithena
Metaropa
Minutiropa
Monomphalus
Nanoropa
Nodularopa
Nullarboropa
Papulaoma
Pararhytida
Parvicharopa
Paryphantopsis
Pereduropa
Platyrhytida
Plesiopsis
Protractiropa
Radiolaropa
Reticharopa
Rhytidopsis
Richardsoniana
Richmondaropa
Robinsoniana
Scelidoropa
Setoturbinata
Sharniropa
Shearopa
Spiraliropa
Stanisicaropa
Subfectola
Tasmanoropa
Tasmathera
Tateropa
Teracharopa
Tristanoropa
Tropidotropis
Tuimalila
Whissonia
Whitcochlea
Xenoropa
Ygernaropa
Stephadiscus
(tree size 1)