Genus
Urnochitina Paris, 1981
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Class | Chitinozoa |
| Order | Operculatifera |
| Family | Desmochitinidae |
| Subfamily | Margachitininae |
| Genus | Linochitina |
| Margachitina | |
| Urnochitina |
| Organism group | Biota |
| Kingdom | Animalia |
| Class | Chitinozoa |
| Order | Operculatifera |
| Family | Desmochitinidae |
| Subfamily | Margachitininae |
| Genus | Linochitina |
| Margachitina | |
| Urnochitina |