Genus
Leptoptlium Öpik, 1930
Selection of related publications
Öpik, A. 1930. Brachiopoda Protremata der estländischen ordovizischen Kukruse-Stufe.  Tartu Ülikooli Geoloogia Instituudi Toimetused   20,      1-261.
List of species
1. Leptoptlium bekkeri Öpik, 1930 | Kukruse Stage
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Strophomenata | 
| Order | Strophomenida | 
| Superfamily | Plectambonitoidea | 
| Family | Leptestiidae | 
| Genus | Bilobia | 
| Leangella | |
| Leptestia | |
| Leptoptlium | |
| Species | bekkeri | 
| transversa | |
| Genus | Rurambonites | 
| Sampo | |
| Ujukella |