Subclass
Pteriomorphia Beurlen, 1944
Selection of related publications
Křiž, J. 2008. A new bivalve community from the lower Ludlow of the Prague Basin (Perunica, Bohemia).  Bulletin of Geosciences   83,   3,   237-280. DOI:10.3140/bull.geosci.2008.03.237
Märss, T., Fredholm, D., Talimaa, V., Turner, S., Jeppson, L., Nowlan, G. 1995. Silurian vertebrate biozonal scheme.  Geobios   28,   Supl. 2,   369-372. DOI:10.1016/S0016-6995(95)80140-5
Liljedahl, L. 1992. Yonginella, a new bivalve (Mollusca) from the Silurian of Gotland.  Journal of Paleontology   66,   2,   211-214. DOI:10.1017/S0022336000033734
Isakar, M. 1991. Harjuan (Late Ordovician) new Bivalves and a new Gastropod from North Estonia.  Acta et Commentationes Universitatis Tartuensis   934,      43-60.
Kiselev, G. N., Sinicyna, I. N., Isakar, M. A., Mironova, M. G., Saladzhius, V. Y. 1990. Atlas mollûskov verhnego ordovika i silura severo-zapada Vostočno-Evropejskoj platformy. pp. 1-80.  Leningrad University. 
Isakar, M. 1990. Bivalvia and Gastropoda.  Field Meeting Estonia 1990. An Excursion Guidebook, pp. 64-65.   Estonia Academy of Sciences. 
Liljedahl, L. 1989. Fylgia baltica gen. et sp. nov. (Bivalvia, Mollusca) from the Silurian of Gotland.  GFF   111,   4,   339-345. DOI:10.1080/11035898909453132
Isakar, M., Sinicyna, I. 1985. Redescription of E. Eichwald's Ordovician bivalve species.  Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология   34,   2,   46-54. DOI:10.3176/geol.1985.2.02
Isakar, M. 1985. New bivalve genus Kogulanychia from the Upper Silurian of Estonia.  Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология   34,   1,   30-31. DOI:10.3176/geol.1985.1.06
Sinicyna, I. N. 1983. Новый род двустворчатых моллюсков из среднего ордовика севера-запала Русской платформы.  Paleontologicheskii sbornik   1983,      29-32.
Saladžius, V. J. 1966. Mollusk fauna of the Silurian deposits of the south of the East Baltic territory.  Palaeontology and stratigraphy of the Baltic and the Byelorussia. Number I (VI), pp. 31-73.   Mintis. 
Isberg, O. 1934. Studien über lamellibranchiaten des Leptaenakalkes in Dalarna. pp. 1-493.  Håkan Ohlssons Buchdruckerei. 
Öpik, A. 1930. Brachiopoda Protremata der estländischen ordovizischen Kukruse-Stufe.  Tartu Ülikooli Geoloogia Instituudi Toimetused   20,      1-261.
Öpik, A. 1930. Beiträge zur Kenntnis der Kukruse-(C2-C3-)Stufe in Eesti. IV.  Tartu Ülikooli Geoloogia Instituudi Toimetused   24,      1-34.
Bekker, H. 1924. Devon Irboska ümbruses: stratigraafia, fauna ja paleogeograafia.  Eesti Loodusteaduse Arhiiv   X,   1,   1-55.  K. Mattiesen. 
Bekker, H. 1921. The Kuckers stage of the Ordovician Rocks in NE Estonia.  Acta et Commentationes Universitatis Tartuensis   II,   1,   1-92.
Schvets, F. P. 1912. Fauna Tšokrakskogo izvestnjaka Kertchenskogo poluostrova.  Verhandlungen der Russisch-Kaiserlichen Mineralogischen Gesellschaft zu St. Petersburg   XLIX,   2,   251-380.  Tipo-litograafia K. Birkenfelda. 
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
Eichwald, E. 1856. Beitrag zur geographischen Verbreitung der fossilen Thiere Russlands. Alte Periode. (Fortsetzung. S. Bulletin 1856. N 2. pag. 406.).  Bulletin of the Moscow Society of Naturalists. Geological series   29,   IV,   555-608.
List of species
1. Ahtioconcha auris Öpik, 1930 | Kukruse Stage
2. Ambonychia incrassata (Eichwald, 1840) | Vormsi Stage
4. Ambonychinia corrugata Lindström, 1880 | Ordovician
6. Ambonychinia demissa Isberg, 1934 | Upper Ordovician
7. Ambonychinia elegans Isberg, 1934 | Upper Ordovician
8. Ambonychinia excelsa Isberg, 1934 | Upper Ordovician
9. Ambonychinia extumida Isberg, 1934 | Upper Ordovician
11. Ambonychinia intermedia Isberg, 1934 | Upper Ordovician
12. Ambonychinia kallholniensis Isberg, 1934 | Upper Ordovician
13. Ambonychinia kullsbergensis Isberg, 1934 | Ordovician
14. Ambonychinia levis Isberg, 1934 | Upper Ordovician
15. Ambonychinia magna Isberg, 1934 | Ordovician
16. Ambonychinia megumbona Isberg, 1934 | Ordovician
17. Ambonychinia pediculata Isberg, 1934 | Upper Ordovician
18. Ambonychinia quadrangulata Isberg, 1934 | Upper Ordovician
19. Ambonychinia quadrata (Hind, 1910) | Ordovician
20. Ambonychinia radiata Isberg, 1934 | Upper Ordovician
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Mollusca | 
| Class | Bivalvia | 
| Subclass | Heterodonta | 
| Isofilibranchia | |
| Palaeoheterodonta | |
| Protobranchia | |
| Pteriomorphia | |
| Order | Arcida | 
| Limida | |
| Myalinida | |
| Praecardiida | |
| Pterioida | |
| Genus | Evyana | 
| Cohort | Mytilomorphi | 
| Superorder | Nepiomorphia | 
| Ostreiformii | |
| Order | Fordillida | 
| Pectinida | |
| Solenida | |
| Trigoniida | |
| Tuarangiida | |
| Superfamily | Pandoroidea |