Selection of related publications
Hints, L. 1993. Holorhynchus (Pentamerida, Brachiopoda) in the Upper Ordovician of Estonia. Proceedings of the Estonian Academy of Sciences. Geology 42, 3, 118-123. DOI:10.3176/geol.1993.3.03
Boucot, A. J., Johnson, J. G., Rubel, M. 1971. Descriptions of brachiopod genera of subfamily Virgianinae Boucot et Amsden, 1963. Eesti NSV Teaduste Akadeemia Toimetised. Keemia, Geoloogia / Известия Академии наук Эстонской ССР. Химия. Геология 20, 3, 271-280. DOI:10.3176/chem.geol.1971.3.16
Eichwald, E. 1860. Lethaea Rossica ou Paléontologie de la Russie. Premier volume. Ancienne Période en deux sections. pp. XIX+1–1657. E. Schweizerbart. DOI:10.5962/bhl.title.52391
List of species
1. Borealis borealis (Eichwald, 1842) | Juuru Stage
2. Borealis pumilus (Eichwald, 1856) | Raikküla Stage
3. Borealis samojedicus (Keyserling, 1846) | Silurian
4. Holorhynchus giganteus Kiaer, 1902 | Katian
5. Proconchidium munsteri (St. Joseph, 1938) | Hirnantian
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Classification
Organism group | Biota |
Kingdom | Animalia |
Phylum | Brachiopoda |
Subphylum | Rhynchonelliformea |
Class | Rhynchonellata |
Order | Pentamerida |
Suborder | Pentameridina |
Superfamily | Pentameroidea |
Family | Virgianidae |
Subfamily | Mariannaellinae |
Virgianinae | |
Genus | Borealis |
Holorhynchus | |
Proconchidium | |
Virgiana |
See also