Genus
Leptaena Dalman, 1828
Selection of related publications
Hints, L., Harper, D. A. T. 2015. The Hirnantian (Late Ordovician) brachiopod fauna of the East Baltic: Taxonomy of the key species.  Acta Palaeontologica Polonica   60,   2,   395-420. DOI:10.4202/app.2013.0010
Rubel, M. 2011. Silurian brachiopods Dictyonellida, Strophomenida, Productida, Orthotetida, Protorthida and Orthida from Estonia.  Fossilia Baltica 4, pp. 1-133.   Tartu Ülikooli geoloogia instituut. 
Cocks, L. R. M. 2005. Strophomenate Brachiopods from the late Ordovician Boda Limestone of Sweden: their systematics and implications for palaeogeography.  Journal of Systematic Palaeontology   30,   3,   243-282. DOI:10.1017/S1477201905001616
Hoel, O. A. 2005. Silurian Leptaeninae (Brachiopoda) of Gotland, Sweden.  Paläontologische Zeitschrift   79,   2,   263-284. DOI:10.1007/BF02990188
Rõõmusoks, A. 2004. Ordovician strophomenoid brachiopods of northern Estonia.  Fossilia Baltica 3, pp. 1-151.   Tartu Ülikooli geoloogia Instituut. 
Rõõmusoks, A. 1989. Über die Divergenz der Leptaenidae (Brachiopoda) in der Viru-und Harju-zeit in Baltoscandia.  Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология   38,   3,   112-117. DOI:10.3176/geol.1989.3.03
Bassett, M. G., Cocks, L. R. M. 1974. A review of Silurian brachiopods from Gotland.  Fossils and Strata   3,      1-56.
Rybnikova, M. V. 1966. Brachiopods Strophomenida of the Upper Silurian deposits of Latvia.  Palaeontology and stratigraphy of the Baltic and the Byelorussia. Number I, pp. 75-95.   Mintis. 
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.
Öpik, A. 1930. Brachiopoda Protremata des estländischen ordovizischen Kukruse-Stufe.  Acta et Commentationes Universitatis Tartuensis   XVII,   1,   1-261.
List of species
1. Leptaena (Leptaena) acuta (Rõõmusoks, 2004) | Idavere Substage
2. Leptaena (Leptaena) acuteplicata (Schmidt, 1908) | Porkuni Stage
4. Leptaena (Leptaena) crassorugata (Rõõmusoks, 2004) | Nabala Stage
7. Leptaena (Leptaena) fluviatilis Oraspõld, 1956 | Keila Stage
8. Leptaena (Leptaena) friedrichi (Rõõmusoks, 2004) | Porkuni Stage
12. Leptaena (Leptaena) ingrica (Rõõmusoks, 2004) | Oandu Stage
13. Leptaena (Leptaena) laterorugata (Rõõmusoks, 1989) | Keila Stage
14. Leptaena (Leptaena) palmrei (Rõõmusoks, 2004) | Oandu Stage
15. Leptaena (Leptaena) paucirugata (Rõõmusoks, 1989) | Vormsi Stage
20. Leptaena (Leptaena) rugosa Dalman, 1828 | Upper Ordovician
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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 | |
| Subgenus | (Leptaena) | 
| (Septomena) | |
| (Ygdrasilomena) | |
| Species | bohemica | 
| candata | |
| parvirugata | |
| venzavensis | |
| wesenbergensis | |
| Genus | Leptaenopoma | 
| Leptagonia | |
| Oandumena | |
| Schmidtomena | |
| Similoleptaena |