fossil marine animal genera Linnaeus, 1758 - animals Phylum †Problematica Andrews, 1970 Class †uncertain 1 Order †Coleoloida 2 Family †Cornulitidae Fischer, 1962 3 Order †Hyolithelminthes 4 Order †Paiutiida Tynan, 1983 5 Order †Sabelliditida Sokolov, 1965 6 Order †Volborthellida 7 Order †incertae sedis