Genus
Worthenia Koninck, 1883
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Gastropoda |
| Subclass | Orthogastropoda |
| Order | Murchisoniina |
| Superfamily | Trochonematoidea |
| Family | Lophospiridae |
| Subfamily | Lophospirinae |
| Genus | Lophospira |
| Loxoplocus | |
| Paupospira | |
| Proturritella | |
| Ruedemannia | |
| Worthenia |