Species
Sigmoopsis granulata (Sarv, 1956)
Selection of related publications
Meidla, T. 1996. Late Ordovician Ostracodes of Estonia. Fossilia Baltica 2. pp. 1-222. Tartu University Press.
Nõlvak, J., Meidla, T., Uutela, A. 1995. Microfossils in the Ordovician erratic boulders from Southwestern Finland. Bulletin of the Geological Society of Finland 67, 2, 3-26. DOI:10.17741/bgsf/67.2.001
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Ostracoda |
| Order | Beyrichicopida |
| Suborder | Palaeocopa |
| Superfamily | Hollinacea |
| Family | Tetradellidae |
| Subfamily | Sigmoopsinae |
| Genus | Sigmoopsis |
| Subgenus | (Sigmoopsis) |
| (Sigmoopsoides) | |
| Species | granulata |
| platyceras | |
| rostrata |