Species
Sigmoopsis platyceras (Öpik, 1937)
Type specimen data
Synonymy list
1937 Ceratopsis platyceras n. sp. — Öpik , pp. 90, fig. 2:6
1953 Ceratopsis platyceras n — Neckaja , pp. 338, fig. 6:1-3
1975 Sigmoopsis platyceras (Öpik) — Přibyl , pp. 12, fig. Abb.1:9-10
Selection of related publications
Nõlvak, J. 1972. A characterization of the boundary beds of the Kukruse and Idavere stages in the Lipu boring. Loodusuurijate Seltsi Aastaraamat, pp. 39-59. Loodusuurijate Selts.
Neckaja, A. I. 1953. Tetradellidy ordovika Pribaltiki i ih stratigraficheskoe znachenie. Trudy Vsesoûznogo Naučno-Issledovatel'skogo Geologo-Razvedočnogo Instituta (VNIGRI) 309-363. Gostoptehizdat.
Öpik, A. 1937. Ostracoda from the Ordovician Uhaku and Kukruse formations of Estonia. Tartu Ülikooli Geoloogia Instituudi Toimetused 50, 1-58.
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Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Superclass | Oligostraca |
| Class | Ostracoda |
| Subclass | Podocopa |
| Order | Palaeocopida |
| Suborder | Beyrichicopina |
| Superfamily | Tetradelloidea |
| Family | Tetradellidae |
| Subfamily | Sigmoopsinae |
| Genus | Sigmoopsis |
| Subgenus | (Sigmoopsis) |
| (Sigmoopsoides) | |
| Species | granulata |
| platyceras | |
| rostrata |
References based on distribution
- Öpik, 1937a Kukruse
- Öpik, 1937a Kohtla-Järve Kukruse Stage
- Neckaja, 1953 Pihkva