Species
Leptaena (Septomena) juvenilis Öpik, 1930
Type specimen data
Synonymy list
1921     Leptaena rhomboidalis Wilckens — Bekker , pp. 70, fig. 4: 9
1930     Leptaena juvenilis sp. nov. — Öpik , pp. 173, fig. 11: 140-141; 12: 142-145
1957     Kiaeromena juvenilis (Öpik, 1930a) — Spjeldnaes , fig. 7: 17
1989     Septomena juvenilis (Öpik, 1930a) — Rõõmusoks , pp. 115, fig. 2: 1-3
2000     Leptaena (Septomena) juvenilis Öpik, 1930a — Cocks et Rong , pp. 243, fig. 150, 2a-c
2004     Septomena juvenilis (Öpik, 1930a) — Rõõmusoks , pp. 47, fig. 17: 1-9, pl 20: 5
Selection of related publications
Rõõmusoks, A. 2004. Ordovician strophomenoid brachiopods of northern Estonia.  Fossilia Baltica 3, pp. 1-151.   Tartu Ülikooli geoloogia Instituut. 
Öpik, A. 1930. Brachiopoda Protremata der estländischen ordovizischen Kukruse-Stufe.  Tartu Ülikooli Geoloogia Instituudi Toimetused   20,      1-261.
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Strophomenata | 
| Order | Strophomenida | 
| Superfamily | Strophomenoidea | 
| Family | Rafinesquinidae | 
| Subfamily | Leptaeninae | 
| Genus | Leptaena | 
| Subgenus | (Septomena) | 
| Species | alliku | 
| crypta | |
| cryptoides | |
| juvenilis | |
| senecta | 
References based on distribution
- Öpik, 1930a Käva Kukruse Stage
- Rõõmusoks, 2004 Küttejõu opencast mine Kukruse Stage
- Rõõmusoks, 2004 Kukruse Kukruse Stage