Naamgeving
| Valid name | Inarticulata |
| Synonym | Tretenterata King, 1873 |
| Synonym | Lyopomata Owen, 1858 |
| Synonym | Gastrocaulia Thomson, 1927 |
| Synonym | Ecardines Bronn, 1862 |
| Synonym | Pleuropygia Bronn, 1862 |
Indeling
-
Brachiopoda
[phylum]
- Inarticulata [class]