Genus

Orthis Dalman, 1828

Selection of related publications

Rubel, M. P. 1961. Lower-Ordovician brachiopods of the superfamilies Orthacea, Dalmanellacea and Syntrophiacea of Eastern Baltic. ENSV TA Geoloogia Instituudi Uurimused VI, 141-226.

Öpik, A. 1927. Beiträge zur Kenntnis der Kukruse-(C2-) Stufe in Eesti. II. Tartu Ülikooli Geoloogia Instituudi Toimetused 10, 1-35.

Bekker, H. 1921. The Kuckers stage of the Ordovician Rocks in NE Estonia. Acta et Commentationes Universitatis Tartuensis II, 1, 1-92.

List of species

1. Orthis callactis Dalman, 1828 | Volkhov Stage→Kunda Stage

Classification

Organism group	Biota
Kingdom	Animalia
Phylum	Brachiopoda
Subphylum	Rhynchonelliformea
Class	Rhynchonellata
Order	Orthida
Suborder	Orthidina
Superfamily	Orthoidea
Family	Orthidae
Genus	Eridorthis
	Leoniorthis
	Orthambonites
	Orthis
Species	callactis
Genus	Paralenorthis
	Rogorthis
	Sivorthis
	Sulevorthis
	Taphrorthis