Species
Grorudia grorudi Spjeldnaes, 1957
Synonymy list
1957     Grorudia grorudi sp. n. — Spjeldnaes , pp. 62, fig. pl. 1: 7, 10, 11; text-figs 11D, 16
1965     Grorudia grorudi Spjeldnaes — Williams in Muir-Wood & Williams , pp. H373, 374, fig. figs 1a,b 
1989     Grorudia grorudi Spjeldnaes — Cocks & Rong , pp. 112-113, fig. figs 64a,b; non figs 65a,b, 66 and 67
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Strophomenata | 
| Order | Strophomenida | 
| Superfamily | Plectambonitoidea | 
| Family | Grorudiidae | 
| Genus | Grorudia | 
| Species | glabrata | 
| grorudi | |
| morrisoni |