Genus
Opsiconidion Ludvigsen, 1974
Selection of related publications
Popov L., Nõlvak J., Holmer, L. 1994. Late Ordovician lingulate brachiopods from Estonia. Palaeontology 37, 3, 627-650.
Biernat, G. 1984. Silurian inarticulate brachiopods from Poland. Acta Palaeontologica Polonica 29, 1-2, 91-103.
Popov, L. 1981. The first record of microscopoic inarticulate brachiopods of the family Acrotretidae of the Silurian of Estonia. Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология 30, 1, 34-41. DOI:10.3176/geol.1981.1.06
List of species
2. Opsiconidion podlasiensis Biernat, 1984 | Wenlock
3. Opsiconidion praecursor Popov, Nõlvak et Holmer, 1994 | Pirgu Stage
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Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Linguliformea |
| Class | Lingulata |
| Order | Acrotretida |
| Superfamily | Acrotretoidea |
| Family | Biernatidae |
| Genus | Biernatia |
| Opsiconidion | |
| Species | aldridgei |
| podlasiensis | |
| praecursor |