Amplexidiscus
(tree size 1)
Actinodiscus
(tree size 9)
Rhodactis
(tree size 19)
Paradiscosoma
(tree size 3)
Discosoma
(tree size 40)
Metarhodactis
(tree size 2)
Platyzoanthus
(tree size 1)
Orinia
(tree size 1)