Genus
Similoleptaena Rõõmusoks, 1989
Current taxon already exists. See initial taxon Leptaena (Leptaena)
 Taxon ID: 1824
Fossil group: Brachiopoda
Belongs to: Leptaeninae
Other version of taxon: Leptaena (Leptaena)
Baltoscandian species (in database): 
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Strophomenata | 
| Order | Strophomenida | 
| Superfamily | Strophomenoidea | 
| Family | Rafinesquinidae | 
| Subfamily | Leptaeninae | 
| Supergenus | Kiaeromena | 
| Genus | Astamena | 
| Estonomena | |
| Harjumena | |
| Kurnamena | |
| Lepidoleptaena | |
| Leptaena | |
| Leptaenopoma | |
| Leptagonia | |
| Oandumena | |
| Schmidtomena | |
| Similoleptaena |