Superregnum: Eukaryota
Regnum: Animalia
Phylum: Brachiopoda
Subphylum: Rhynchonelliformea
Classis: †Strophomenata
Ordo: Billingsellida
Subordo: Billingsellidina
Superfamilia: Billingselloidea
Familia: Billingsellidae
Genera: Billingsella – Cymbithyris – Eosotrematorthis – Kozhuchinella – Saccogonum – Xenorthis
Name
Billingsellidae Schuchert 1893
References
The Paleobiology Database Accessed 11/30/08
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