Superregnum: Eukaryota
Regnum: Animalia
Phylum: Brachiopoda
Subphylum: Rhynchonelliformea
Classis:Rhynchonellata
Ordo: Rhynchonellida
Superfamilia: Hemithiridoidea
Familiae: †Cyclothyrididae - Hemithirididae - Notosariidae - †Septirhynchiidae - †Tetrarhynchiidae - †Triasorhynchiidae
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