Species
Protarabellites tortilis Kozur, 1967
Luokittelu
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Annelida |
| Class | Polychaeta |
| Order | Eunicida |
| Family | Ramphoprionidae |
| Genus | Protarabellites |
| Species | augustus |
| canadensis | |
| concavus | |
| delectus | |
| diminutus | |
| dubius | |
| excelsus | |
| fidelis | |
| giganteus | |
| glenwoodensis | |
| grandis | |
| hamiltonensis | |
| humilis | |
| intermedius | |
| maturensis | |
| productus | |
| rectangularis | |
| staufferi | |
| tortilis | |
| triangularis |