Genus

Isorthis Kozłowski, 1929

Selection of related publications

Rubel, M. 2011. Silurian brachiopods Dictyonellida, Strophomenida, Productida, Orthotetida, Protorthida and Orthida from Estonia. Fossilia Baltica 4, pp. 1-133. Tartu Ülikooli geoloogia instituut.

Hints, L. 1975. Brahiopody Enteletacea ordovika Pribaltiki. pp. 1-119. Eesti NSV Teaduste Akadeemia.

Rubel, M. P. 1963. Silurian brachiopods Orthida of Estonia. ENSV TA Geoloogia Instituudi Uurimused XIII, 109-160.

Rubel, M. P. 1962. New species of brachiopods (Dalmanellidae) from the Llandoverian of Estonia. ENSV TA Geoloogia Instituudi Uurimused X, 173-186.

List of species

1. Isorthis crassa (Lindström, 1861) | Adavere Stage→Jaani Stage

2. Isorthis estona (Alichova, 1953) | Vormsi Stage→Pirgu Stage

3. Isorthis loveni (Lindström, 1861) | Llandovery→Wenlock

4. Isorthis mediocra (Rubel, 1962) | Juuru Stage→Raikküla Stage

5. Isorthis ovalis (Paškevicius, 1962) | Kuressaare Stage

6. Isorthis parvulus Rybnikova, 1967 | Juuru Stage→Jaani Stage

7. Isorthis slitensis Walmsley, 1965 | Wenlock

8. Isorthis usari Rubel, 1963 | Kaugatuma Stage→Ohesaare Stage

Classification

Organism group	Biota
Kingdom	Animalia
Phylum	Brachiopoda
Subphylum	Rhynchonelliformea
Class	Rhynchonellata
Order	Orthida
Suborder	Dalmanellidina
Superfamily	Dalmanelloidea
Family	Dalmanellidae
Subfamily	Isorthinae
Genus	Isorthis
Species	crassa
	estona
	loveni
	mediocra
	ovalis
	parvulus
	slitensis
	usari
Genus	Levenea