| Citation | Riedl, R. and R. Rieger, 1972 New characters observed on isolated jaws and basal plates of the Family Gnathostomulidae (Gnathostomulida). Z. Morph. Tiere 72:131-172. |
| Ref. | 1483 Riedl, R. and R. Rieger, 1972 |
| Page | 133 |
| Named Used as Valid | Semaeognathia sterreri |
| Locality | |
| Distribution |