| system |
Vitae - living organisms
|
| domain |
Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells
|
| superregnum |
Unikonta
|
| system |
Opisthokonta Cavalier-Smith, 1987
|
| kingdom |
Animalia Linnaeus, 1758 - animals
|
| subregnum |
Eumetazoa Butschli, 1910
|
| divisio |
Bilateria Hatschek, 1888 - bilaterians
|
| subdivisio |
Protostomia Grobben, 1908 - protostomes
|
| phylum |
Brachiopoda Duméril, 1806 - lamp shells
|
| subphylum |
Rhynchonelliformea
|
| class |
Rhynchonellata
|
| order |
Atrypida Rzhonsnitskaya, 1960
† |
| suborder |
Atrypidina Moore, 1952
† |
| superfamily |
Atrypoidea Gill, 1871
† |
| family |
Atrypinidae McEvan, 1939
† |
| subfamily |
Atrypininae Hall & Clarke, 1894
† |
| genus |
Gracianella Johnson & Boucot, 1967
† |
| species |
Gracianella plicumbra Johnson & Boucot, 1967
† |
