Children (21 direct children, 147 direct and indirect children):
Cerianthus
(tree size 63)
Ceriantheopsis
(tree size 4)
Syndactylactis
(tree size 6)
Synarachnactis
(tree size 3)
Isodactylactis
(tree size 8)
Arachnactis
(tree size 5)
Pachycerianthus
(tree size 18)
Ceriantheomorphe
(tree size 3)
Anthoactis
(tree size 3)
Apiactis
(tree size 3)
Solasteractis
(tree size 1)
Trichactis
(tree size 1)
Plesiodactylactis
(tree size 1)
Peponactis
(tree size 1)
Bursanthus
(tree size 1)
Engodactylactis
(tree size 1)
Nautanthus
(tree size 1)
Paradactylactis
(tree size 1)
Parovactis
(tree size 1)
Sacculactis
(tree size 1)
Saccanthus