Species
Tetrada (Tetrada) variabilis Meidla, 1986
Synonyymit
1979 Tallinnopsis ex gr. iewica — Sidaravičiene , pp. 134, 136
1986 Tetrada variabilis sp. n. — Meidla , pp. 15-16, fig. 3:7-10
1992 Tetrada (Tetrada) variabilis Meidla, 1986 — Sidaravičiene , pp. 115, fig. 30:3-7
1996 Tetrada (Tetrada) variabilis Meidla, 1986 — Meidla , pp. 47-48, fig. 7:10
2022 Tetrada (Tetrada) variabilis Meidla, 1986 — Melnikova et al. , fig. 4b
Aiheeseen liittyvät julkaisut
Meidla, T. 1996. Late Ordovician Ostracodes of Estonia. Fossilia Baltica 2. pp. 1-222. Tartu University Press.
Meidla, T. 1986. Neue Ostrakoden aus dem Ordovizium des Baltikums. Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология 35, 1, 10-19. DOI:10.3176/geol.1986.1.02
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Luokittelu
| 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 | (Tetrada) |
| Species | grandis |
| harpa | |
| krausei | |
| memorabilis | |
| neckajae | |
| ovalis | |
| pseudoiewica | |
| variabilis |
Levinneisyys ja viitteet
- Meidla, 1996a Orjaku borehole 112.3 - 115.6
- Meidla, 1996a Puhmu 567 borehole 123.9 -
- Sidaravičiene, 1992 Sutkai 86 borehole 1050.1 -
- Sidaravičiene, 1992 Geluva 114 borehole 1136 -
- Sidaravičiene, 1992 Leliai 284 borehole 472.2 - 473
- Meidla, 1986a Berzini 33 borehole 434 - Nabala Stage
- Meidla, 1986a Järva-Madise H-18 borehole 95 - Rakvere Stage
- Meidla, 1986a Vinni T-112 borehole 27.2 - 41.4 Rakvere Stage