Species

Tetrada (Tetrada) variabilis Meidla, 1986

Synonymy list

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

Selection of related publications

Meidla, T. 1996. Late Ordovician Ostracodes of Estonia. Fossilia Baltica 2. pp. 1-222. Tartu University Press.

Sidaravičiene, N. 1992. Ordovician ostracods of Lithuania. pp. 1-252. LitNIIGRI.

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

Classification

Organism group	Biota
Kingdom	Animalia
Phylum	Arthropoda
Subphylum	Crustacea
Class	Ostracoda
Order	Beyrichicopida
Suborder	Palaeocopa
Family	Ctenonotellidae
Subfamily	Tallinnellinae
Genus	Tetrada
Subgenus	(Tetrada)
Species	grandis
	harpa
	krausei
	memorabilis
	neckajae
	ovalis
	pseudoiewica
	variabilis

References based on distribution

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