Species
Sigmoopsis (Sigmoopsoides) perpunctata (Öpik, 1937)
Type specimen data
Synonymy list
1937     Ceratopsis perpunctata n. sp. — Öpik , pp. 27, fig. 10:3-6
1949     Glossopsis perpunctata (Öpik) — Hessland , pp. 297
1953     Ceratopsis perpunctata (Öpik) — Neckaja , pp. 333, fig. 5:1-2
1953     Sigmoopsis perpunctata (Öpik) — Henningsmoen , pp. 205
1959     Sigmoopsis perpunctata (Öpik) — Sarv , pp. 112, fig. 21:1-5
1973     Sigmoopsis perpunctata (Öpik) — Sidaravičiene , pp. 1183
1979     Sigmoopsis cf. perpunctata — Sidaravičiene , pp. 136
1992     Sigmoopsis (Sigmoopsoides) perpunctata — Sidaravičiene , pp. 50, fig. 11:4
Selection of related publications
Sarv, L. 1959. Ordovician ostracodes in the Estonian S.S.R..  ENSV TA Geoloogia Instituudi Uurimused   IV,      1-210.
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 juures oleva Loodusuurijate Seltsi Aruanded   43,      65-138.
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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Classification
| 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 | (Sigmoopsoides) | 
| Species | niemeyeri | 
| perpunctata | |
| Subspecies | prominens | 
| Species | sigmoopsoides | 
References based on distribution
- Sidaravičiene, 1992 Geluva 117 borehole 971.4 -
- Sidaravičiene, 1992 Paukšciai 192 borehole 559 - 560.3
- Öpik, 1937i Kohtla-Järve Uhaku Stage
- Neckaja, 1953 Pihkva