Subgenus
Leptaena (Septomena) Rõõmusoks, 1989
Selection of related publications
Rõõmusoks, A. 2004. Ordovician strophomenoid brachiopods of northern Estonia. Fossilia Baltica 3, pp. 1-151. Tartu Ülikooli geoloogia Instituut.
Oraspõld, A. L. 1956. New brachiopods from the Jõhvi, Keila and Vasalemma stages. ENSV TA Geoloogia Instituudi Uurimused I, 41-67.
Öpik, A. 1930. Brachiopoda Protremata der estländischen ordovizischen Kukruse-Stufe. Tartu Ülikooli Geoloogia Instituudi Toimetused 20, 1-261.
List of species
1. Leptaena (Septomena) alliku (Oraspõld, 1956) | Keila Stage
2. Leptaena (Septomena) crypta Öpik, 1930 | Kukruse Stage
3. Leptaena (Septomena) cryptoides (Oraspõld, 1956) | Keila Stage
4. Leptaena (Septomena) juvenilis Öpik, 1930 | Kukruse Stage
5. Leptaena (Septomena) senecta (Rõõmusoks, 2004) | Lasnamägi Stage
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Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Strophomenata |
| Order | Strophomenida |
| Superfamily | Strophomenoidea |
| Family | Rafinesquinidae |
| Subfamily | Leptaeninae |
| Genus | Leptaena |
| Subgenus | (Leptaena) |
| (Septomena) | |
| Species | alliku |
| crypta | |
| cryptoides | |
| juvenilis | |
| senecta | |
| Subgenus | (Ygdrasilomena) |
| Species | bohemica |
| candata | |
| parvirugata | |
| venzavensis | |
| wesenbergensis |