Subclass

Eogastropoda Ponder et Lindberg, 1996

Selection of related publications

Nützel, A., Ebbestad, J. O., Seuss, B., Munnecke, A., Mapes, R. H., Cook, A. G. 2023. On Paleozoic platycerate gastropods. Zitteliana 97, 29-51. DOI:10.3897/zitteliana.97.115688

Vinn, O., Wilson, M. A. 2013. Silurian cornulitids of Estonia (Baltica). Carnets de Géologie A09, 357-367. DOI:10.4267/2042/53034

Isakar, M., Ebbestad, J. O. R., Peel, J. S. 1999. Homeomorphic gastropods from the Silurian of Norway, Estonia and Bohemia. Norsk Geologisk Tidsskrift 79, 4, 281-288. DOI:10.1080/002919699433717

Isakar, M. 1995. The platyceratacean gastropod Cyclonema (Cyclonema) hiiumaa Teichert, 1928 from the Llandovery (Silurian) of Estonia. Proceedings of the Estonian Academy of Sciences. Geology 44, 3, 184-187. DOI:10.3176/geol.1995.3.04

Isakar, M. 1990. Bivalvia and Gastropoda. Field Meeting Estonia 1990. An Excursion Guidebook, pp. 64-65. Estonia Academy of Sciences.

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.

Peel, J. S., Yochelson, E. L. 1976. Two new gastropod genera from the Lower Silurian of the Oslo Region, Norway. Norsk Geologisk Tidsskrift 56, 1, 15-27.

Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I. pp. 1-346. Valgus.

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.

Eichwald, E. 1861. Paleontologiâ Rossii. Drevnij period. II. Fauna grauvakkovoj, gornoizvestkovoj i medistoslancevatoj formacij Rossii. pp. 1-521. R. Golike (former Ya. Ionsona).

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

Schmidt, Fr. 1858. Untersuchungen über die Silurische Formation von Ehstland, Nord-Livland und Oesel. Archiv für die Naturkunde Liv-, Ehst- und Kurlands 2, 1, 1-249. Heinrich Laakmann.

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.

Pacht, R. 1849. Der devonische Kalk in Livland. Ein Beitrag zur Geognosie der Ostseeprovinzen. pp. . J. C. Schünmann's Wittwe und C. Mattiesen.

Eichwald, E. von 1840. Ueber das silurische Schichten-system in Esthland. Zeitschrift für Natur- und Heilkunde 1-2, 1-210. DOI:10.5962/bhl.title.150763

List of species

1. Asgardaspira evolvens (Koken, 1897) | Aseri Stage

2. Boucotspira carinifer (Koken, 1896) | Vormsi Stage→Pirgu Stage

3. Cyclonema hiiumaa Teichert, 1928 | Juuru Stage→Raikküla Stage

4. Cyclonema rupestre (Eichwald, 1842) | Nabala Stage→Pirgu Stage

5. Cyclonema statshiunaica Saladzhius, 1966 | Llandovery

6. Ecculiomphalus centrifugus (Koken, 1897)

7. Ecculiomphalus increscens (Eichwald, 1840)

8. Eccyliopterus regularis (Remelé, 1888) | Lasnamägi Stage→Haljala Stage

9. Euomphalopterus alatus (Wahlenberg, 1818) | Jaani Stage

10. Holopea ampullacea (Eichwald, 1840) | Nabala Stage→Pirgu Stage

11. Holopea applanata Lindström, 1884

12. Holopea balticus (Koken, 1897) | Jõhvi Substage→Oandu Stage

13. Holopea coronata Koken, 1897 | Vormsi Stage

14. Holopea eichwaldi Koken, 1896 | Lasnamägi Stage

15. Holopea filosus Koken et Perner, 1925

16. Holopea harpa (Lindström, 1880) | Katian

17. Holopea henningsmoeni Yochelson 1963

18. Holopea inaequistriata Koken et Perner, 1925 | Nabala Stage→Pirgu Stage

19. Holopea mobergi Troedsson, 1918 | Katian

20. Holopea nitidissima Lindström, 1884

Classification

Organism group	Biota
Kingdom	Animalia
Phylum	Mollusca
Class	Gastropoda
Subclass	Archaeobranchia
	Archaeogastropoda
	Eogastropoda
Order	Euomphalina
Subclass	Neritimorpha
	Orthogastropoda
	Prosobranchia
	Streptoneura
Order	Bellerophontida
	Heterostropha
Superfamily	Patelloidea
Genus	Semizona