Gastropods
Class Gastropoda Cuvier, 1797

et: teod; sv: snäckor; fi: kotilot; ru: Брюхоногие;

Taxon ID: 56 / 2013-12-12

List of Baltoscandian species (may not be complete, up to 1000 species displayed)

Boucotspira carinifer | Vormsi Stage → Pirgu Stage
Brachytomaria baltica | Jõhvi Substage → Rakvere Stage
Brachytomaria nodulosa | Nabala Stage → Pirgu Stage
Brachytomaria plautini | Kunda Stage
Brachytomaria plicifera | Vormsi Stage → Pirgu Stage
Bucanella crispata | Aseri Stage
Bucanella revaliensis | Kunda Stage
Bucania cornu | Vormsi Stage → Pirgu Stage
Bucania czekanowskii | Kukruse Stage
Bucania erratica | Upper Ordovician
Bucania oelandica |
Bucania radiata | Rakvere Stage → Pirgu Stage
Cataschisma nitida | Porkuni Stage
Cataschisma winkleri | Kukruse Stage
Cyclonema hiiumaa | Juuru Stage → Raikküla Stage
Cyclonema rupestre | Nabala Stage → Pirgu Stage
Cymbularia aequalis | Vormsi Stage
Deaechospira elliptica | Lasnamägi Stage → Kukruse Stage
Deaechospira inflata | Aseri Stage → Lasnamägi Stage
Deaechospira maritima | Aseri Stage
Ecculiomphalus incresens |
Eccyliopterus regularis |
Ectomaria nieszkowskii | Porkuni Stage
Eotomaria notabilis |
Eunema sulcifera | Nabala Stage
Euomphalopterus alatus | Jaani Stage
Fusispira bullatus | Pirgu Stage
Fusispira ovalis | Vormsi Stage
Holopea ampullacea | Nabala Stage → Pirgu Stage
Holopea balticus | Jõhvi Substage → Oandu Stage
Holopea filosus |
Holopea inaequistriata | Nabala Stage → Pirgu Stage
Hormotoma exilis | Rakvere Stage → Nabala Stage
Hormotoma insignis | Rakvere Stage → Pirgu Stage
Hormotoma meyendorfi | Porkuni Stage
Hormotoma rudis | Pirgu Stage
Hormotoma scrobiculata | Pirgu Stage
Kiaeromphalus kristianiensis | Llandovery
Kiaeromphalus undiferus | Adavere Stage
Kokenospira lateralis | Haljala Stage
Kokenospira retifera | Kukruse Stage
Kokenospira undata | Aseri Stage
Latitaenia aequicrescens | Vormsi Stage
Latitaenia kirnaensis | Nabala Stage
Lesueurilla helix | Kunda Stage
Lesueurilla marginalis | Kunda Stage → Lasnamägi Stage
Lesueurilla marginalis marginalis | Kunda Stage → Uhaku Stage
Lesueurilla marginalis spiralis | Jõhvi Substage → Keila Stage
Lophospira kuckersiana | Kukruse Stage
Lophospira lyckholmiensis | Nabala Stage → Pirgu Stage
Lophospira mickwitzi |
Lophospira milleri | Kunda Stage → Lasnamägi Stage
Lophospira raudi | Kukruse Stage
Lophospira subalata | Kukruse Stage → Keila Stage
Loxonema strangulatum |
Loxoplocus silurica | Lasnamägi Stage → Vormsi Stage
Loxoplocus vermetus | Pirgu Stage
Lytospira anguina | Haljala Stage
Lytospira evolvens | Aseri Stage
Lytospira tubicina | Kunda Stage
Lytospira valida | Pirgu Stage
Lytospira? exarta | Uhaku Stage
Maclurites neritoides | Pirgu Stage
Megalomphala contorta | Jõhvi Substage → Keila Stage
Megalomphala crassa | Vormsi Stage → Pirgu Stage
Megalomphala crassiuscula | Jõhvi Formation → Keila Stage
Megalomphala cycloides | Keila Stage
Megalomphala gotlandica | upper Silurian
Megalomphala majorae | upper Silurian
Megalomphala planorbiforma | Lower Ordovician
Megalomphala taenia | upper Silurian
Megalomphala wilfredi | lower Silurian
Onychochilus physa | Ludlow
Onychochilus reticulatum | Ludlow
Pachystrophia dilatata | Kunda Stage
Pachystrophia vortex | Vormsi Stage
Pararaphistoma mutans | Lasnamägi Stage
Pararaphistoma scalare |
Pararaphistoma vaginati | Kunda Stage
Phragmolites excavatus | Upper Ordovician
Phragmolites lindstroemi | Upper Ordovician
Poleumita discors | Jaagarahu Stage
Poleumita rugosa | Jaani Stage
Prosolarium limata |
Proturritella acutum | Kunda Stage
Proturritella angulosa | Aseri Stage
Proturritella cingulata | Kunda Stage
Proturritella gradata | Kunda Stage
Proturritella piersalense | Pirgu Stage
Proturritella reticulata | Kunda Stage
Proturritella trimarginata | Kunda Stage → Lasnamägi Stage
Pseudocryptaenia lahuseni | Oandu Stage
Pseudocryptaulina chamaeconus | Nabala Stage → Vormsi Stage
Ruedemannia aista | Porkuni Stage
Ruedemannia borkholmiensis | Porkuni Stage
Ruedemannia tolli | Porkuni Stage
Salpingostoma carrolense | Kunda Stage
Salpingostoma compressum | Uhaku Stage → Haljala Stage
Salpingostoma locator |
Salpingostoma megalostoma | Lasnamägi Stage
Salpingostoma verrucosum | Kunda Stage
Semizona bella | Katian
Sinuites nitens | Nabala Stage → Vormsi Stage
Sinuites rugulosus | Kunda Stage → Aseri Stage
Subulites amphora | Idavere Substage → Rakvere Stage
Subulites gigas | Vormsi Stage → Pirgu Stage
Subulites priscus | Aseri Stage → Kukruse Stage
Subulites revalensis | Lasnamägi Stage → Kukruse Stage
Subulites subula | Rakvere Stage → Pirgu Stage
Temnodiscus accola | Kukruse Stage → Keila Stage
Temnodiscus pleurogonus |
Tetranota conspicua | Nabala Stage → Vormsi Stage
Tetranota jugata |
Tetranota lineata |
Tetranota obtusangulata |
Trochomphalus borkholmiensis | Vormsi Stage → Porkuni Stage
Trochomphalus dimidiatus | Porkuni Stage
Trochonema minus | Porkuni Stage
Trochonema panderi | Porkuni Stage
Trochonema peraltum | Porkuni Stage
Umbonellina infrasilurica |

Taxon overview

The Gastropoda or gastropods, more commonly known as snails and slugs, are a large taxonomic class within the phylum Mollusca.
Snails are distinguished by an anatomical process known as torsion, where the visceral mass of the animal rotates 180° to one side during development, such that the anus is situated more or less above the head. This process is unrelated to the coiling of the shell, which is a separate phenomenon. Torsion is present in all gastropods, but the opisthobranch gastropods are secondarily de-torted to various degrees.
Gastropods typically have a well-defined head with two or four sensory tentacles with eyes, and a ventral foot, which gives them their name (Greek gaster, stomach, and poda, feet). The larval shell of a gastropod is called a protoconch.
The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the early Cambrian.

Picture Gallery (Gastropoda)

Selection of related publications

Isakar, 2017. Huvitav leid: kivistunud "kihv"
Vinn & Wilson, 2013c. Silurian cornulitids of Estonia (Baltica) [DOI]
Ebbestad et al., 2009. Predation on bellerophontiform molluscs in the Paleozoic [DOI]
Frisk & Ebbestad, 2007. Paragastropoda, Tergomya and Gastropoda (Mollusca) from the Upper Ordovician Dalby Limestone, Sweden [DOI]
Ebbestad & Högström, 2007b. Locality descriptions, the Siljan District
Isakar & Ebbestad, 2000. Bucania (Gastropoda) from the Ordovician of Estonia [DOI]
Isakar et al., 1999. Homeomorphic gastropods from the Silurian of Norway, Estonia and Bohemia
Isakar, 1995a. The platyceratacean gastropod Cyclonema (Cyclonema) hiiumaa Teichert, 1928 from the Llandovery (Silurian) of Estonia
Isakar, 1991. Harjuan (Late Ordovician) new Bivalves and a new Gastropod from North Estonia
Isakar, 1990. Bivalvia and Gastropoda
Kisselev et al., 1990. Atlas of Upper Ordovician and Silurian molluscs from the nort-western part of East-European platform.
Rõõmusoks, 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I
Lõokene, 1961. The Geology of Travertine in the Estonian S. S. R.
Erisalu, päevik 5. Erisalu, päevik 5, Geoloogilise kaardistamise ekspeditsioon Nr.4, välipäevik
Öpik, 1930b. Beiträge zur Kenntnis der Kukruse-(C2-C3-)Stufe in Eesti. IV
Koken & Perner, 1925. Die gastropoden des baltischen Untersilurs
Bekker, 1925a. Lühike ülevaade Eesti geoloogiast. (Eozoiline ja paleozoiline ladekond)
Bekker, 1924b. The Devonian Rocks of the Irboska district (S. E. Estonia) with the description of a new cemented brachiopod
Koken, 1897. Die Gastropoden des Baltischen Untersilurs
Koken, 1896. Die Leitfossilien. Ein Handbuch für den Unterricht und für das Bestimmen von Versteinerungen
Lindström, 1884. On the Silurian Gastropoda and Pteropoda of Gotland
Eichwald, 1861a. Палеонтология России. Древний период. II. Фауна граувакковой, горноизвестковой и медистослaнцеватой формаций России
Schmidt, 1858. Untersuchungen über die silurische Formation von Ehstland, Nord-Livland und Oesel