Verrill, 1865
Families: The order contains fifteen families.
Family Kophophelemnidae
Family Pteroeididae
Family Veretillidae
Family Virgulariidae
Description: Colonies rod-like Cavernulina cylindrica (1) or feather-likecf Virgularia with a peduncle that is burried in the sediment. Most species have a rod-like axis composed of calcium carbonate.