Species
Alwynella osloensis Spjeldnaes, 1957
Synonymy list
1898     Grorudia grorudi (Spjeldnaes) — Cocks & Rong , pp. 111, 113, fig. figs 65a,b, 66-67
1957     Alwynella osloensis sp. n.  — Spjeldnaes , pp. 86-87, fig. pl. 1: 5, 9, 14; text-figs 19B, 21
1965     Alwynella osloensis Spjeldnaes, 1957 — Williams in Muir-Wood & Williams , pp. H382, fig. figs 5a, b
2000     Grorudia grorudi Spjeldnaes — Cocks & Rong , pp. 329, fig. 213, 3a
2007     Alwynella osloensis Spjeldnaes, 1957 — Hints & Harper , pp. 274
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Strophomenata | 
| Order | Strophomenida | 
| Superfamily | Plectambonitoidea | 
| Family | Alwynellidae | 
| Genus | Alwynella | 
| Species | ildjernensis | 
| intermedia | |
| osloensis |