Phylum Brachiopoda Duméril, 1806 - brachiopods
Subphylum Rhynchonelliformea Williams et al., 1996
Class Rhynchonellata Williams et al., 1996
Order †Spiriferida Waagen, 1883
Suborder †Delthyridina Ivanova, 1972
Superfamily †Delthyridoidea Phillips, 1841
1 Family †Delthyrididae Waagen, 1883
2 Family †Hysterolitidae Termier & Termier, 1949
3 Family †Acrospiriferidae Termier & Termier, 1949
4 Family †Cyrtinopsidae Wedekind, 1926
5 Family †Mucrospiriferidae Pitrat, 1965