Species
Silenis? trapeziformis Abushik et Sarv, 1983
Synonymy list
1983     Silenis? trapeziformis sp. n. — Abushik et Sarv , pp. 120-121, fig. 5:1-4
1996     Silenis? trapeziformis Abushik et Sarv, 1983 — Meidla , pp. 113-114, fig. 23:3-4
Selection of related publications
Meidla, T. 1996. Late Ordovician Ostracodes of Estonia. Fossilia Baltica 2. pp. 1-222.  Tartu University Press. 
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Arthropoda | 
| Subphylum | Crustacea | 
| Superclass | Oligostraca | 
| Class | Ostracoda | 
| Subclass | Podocopa | 
| Order | Podocopida | 
| Superfamily | Bairdiocypridoidea | 
| Family | Bairdiocyprididae | 
| Genus | Silenis | 
| Species | acer | 
| bassleri | |
| cristatus | |
| derivatus | |
| erigens | |
| estonus | |
| insolitus | |
| kaugatomus | |
| mawii | |
| obliteratus | |
| proteus | |
| selectus | |
| simplex | |
| subtriangulatus | |
| sulcatus | |
| symmetricus | |
| Silenis? trapeziformis | 
References based on distribution
- Meidla, 1996a Haapsalu 203 borehole 22.2 - 59.55
- Meidla, 1996a Põhjaka-Saare H-171 borehole 77.7 -
- Meidla, 1996a Aidu 427 borehole 185 -