Subgenus

Sigmoopsis (Sigmoopsis) Henningsmoen, 1953

Selection of related publications

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

Öpik, A. 1937. Ostracoda from the Ordovician Uhaku and Kukruse formations of Estonia. Tartu Ülikooli Geoloogia Instituudi Toimetused 50, 1-58.

List of species

1. Sigmoopsis (Sigmoopsis) cornuta (Krause, 1897) | Kukruse Stage→Oandu Stage

2. Sigmoopsis (Sigmoopsis) kernavensis Sidaravičiene, 1992 | Oandu Stage→Rakvere Stage

3. Sigmoopsis (Sigmoopsis) obliquejugata (Schmidt, 1858) | Uhaku Stage→Idavere Substage

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Classification

Organism group	Biota
Kingdom	Animalia
Phylum	Arthropoda
Subphylum	Crustacea
Class	Ostracoda
Order	Beyrichicopida
Suborder	Palaeocopa
Superfamily	Hollinacea
Family	Tetradellidae
Subfamily	Sigmoopsinae
Genus	Sigmoopsis
Subgenus	(Sigmoopsis)
Species	cornuta
	kernavensis
	obliquejugata
Subgenus	(Sigmoopsoides)
Species	granulata
	platyceras
	rostrata