Species
Tetrada (Perplana) perplana (Neckaja, 1953)
Synonymy list
1953 Tetradella perplana sp. n. — Neckaja , pp. 320-323, fig. 2:1-2
1959 Tallinnopsis perplana (Neckaja) — Sarv , pp. 68, fig. text fig. 7b
1971 Tetrada perplana (Neckaja) — Sidaravičiene , pp. 32
1976 Tetrada perplana (Neckaja, 1953) — Schallreuter , pp. 165
1979 Tallinnopsis perplana — Sidaravičiene , pp. 135
1992 Tetrada (Perplana) perplana (Neckaja, 1953) — Sidaravičiene , pp. 123, fig. 32:1-5
2022 Tetrada (Neotsitrella) perplana (Neckaja, 1953) — Melnikova et al. , pp. 517, fig. 4a
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.
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.
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Superclass | Oligostraca |
| Class | Ostracoda |
| Subclass | Podocopa |
| Order | Palaeocopida |
| Suborder | Beyrichicopina |
| Palaeocopa | |
| Family | Ctenonotellidae |
| Genus | Tetrada |
| Subgenus | (Perplana) |
| Species | bisulcata |
| pabradensis | |
| perplana |
References based on distribution
- Sidaravičiene, 1992 Kalvarija borehole 934.7 -
- Sidaravičiene, 1992 Sutkai 89 borehole 1211.3 -
- Sidaravičiene, 1992 Drukshiai 324 borehole 451.4 - 457.2
- Sarv, L., 1959 Kodasema, Harju County
- Sarv, L., 1959 Lasnamäe quarry
- Sarv, L., 1959 Humala
- Neckaja, 1953 Kamariku borehole