Gastropoda

Gastropods
Class Gastropoda Cuvier, 1797

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

Taxon ID: 56 / 2018-11-26
Belongs to: Mollusca
Sister taxa: Bivalvia | Diplacophora | Helcionelloida | Hyolitha | Paragastropoda | Rostroconchia | Tergomya | Cephalopoda
Contains: Archaeogastropoda | Bellerophontida | Eogastropoda | Orthogastropoda | Prosobranchia | Semizona
Stratigraphic range: Cambrian Quaternary | ~ 542,0–0,0 Ma
Baltoscandian species (in database): 124

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

  1. Boucotspira carinifer | Vormsi Stage → Pirgu Stage
  2. Brachytomaria baltica | Jõhvi Substage → Rakvere Stage
  3. Brachytomaria nodulosa | Nabala Stage → Pirgu Stage
  4. Brachytomaria plautini | Kunda Stage
  5. Brachytomaria plicifera | Vormsi Stage → Pirgu Stage
  6. Bucanella crispata | Aseri Stage
  7. Bucanella revaliensis | Kunda Stage
  8. Bucania cornu | Vormsi Stage → Pirgu Stage
  9. Bucania czekanowskii | Kukruse Stage
  10. Bucania erratica | Upper Ordovician
  11. Bucania oelandica |
  12. Bucania radiata | Rakvere Stage → Pirgu Stage
  13. Cataschisma nitida | Porkuni Stage
  14. Cataschisma winkleri | Kukruse Stage
  15. Cyclonema hiiumaa | Juuru Stage → Raikküla Stage
  16. Cyclonema rupestre | Nabala Stage → Pirgu Stage
  17. Cymbularia aequalis | Vormsi Stage
  18. Deaechospira elliptica | Lasnamägi Stage → Kukruse Stage
  19. Deaechospira inflata | Aseri Stage → Lasnamägi Stage
  20. Deaechospira maritima | Aseri Stage
  21. Ecculiomphalus incresens |
  22. Eccyliopterus regularis |
  23. Ectomaria nieszkowskii | Porkuni Stage
  24. Eotomaria notabilis |
  25. Eunema sulcifera | Nabala Stage
  26. Euomphalopterus alatus | Jaani Stage
  27. Fusispira bullatus | Pirgu Stage
  28. Fusispira ovalis | Vormsi Stage
  29. Gotlandiella contraria | Sheinwoodian
  30. Holopea ampullacea | Nabala Stage → Pirgu Stage
  31. Holopea balticus | Jõhvi Substage → Oandu Stage
  32. Holopea filosus |
  33. Holopea inaequistriata | Nabala Stage → Pirgu Stage
  34. Hormotoma exilis | Rakvere Stage → Nabala Stage
  35. Hormotoma insignis | Rakvere Stage → Pirgu Stage
  36. Hormotoma meyendorfi | Porkuni Stage
  37. Hormotoma rudis | Pirgu Stage
  38. Hormotoma scrobiculata | Pirgu Stage
  39. Kiaeromphalus kristianiensis | Llandovery
  40. Kiaeromphalus undiferus | Adavere Stage
  41. Kokenospira lateralis | Haljala Stage
  42. Kokenospira retifera | Kukruse Stage
  43. Kokenospira undata | Aseri Stage
  44. Latitaenia aequicrescens | Vormsi Stage
  45. Latitaenia kirnaensis | Nabala Stage
  46. Lesueurilla helix | Kunda Stage
  47. Lesueurilla marginalis | Kunda Stage → Lasnamägi Stage
  48. Lesueurilla marginalis marginalis | Kunda Stage → Uhaku Stage
  49. Lesueurilla marginalis spiralis | Jõhvi Substage → Keila Stage
  50. Lophospira kuckersiana | Kukruse Stage
  51. Lophospira lyckholmiensis | Nabala Stage → Pirgu Stage
  52. Lophospira mickwitzi |
  53. Lophospira milleri | Kunda Stage → Lasnamägi Stage
  54. Lophospira raudi | Kukruse Stage
  55. Lophospira subalata | Kukruse Stage → Keila Stage
  56. Loxonema strangulatum |
  57. Loxoplocus silurica | Lasnamägi Stage → Vormsi Stage
  58. Loxoplocus vermetus | Pirgu Stage
  59. Lytospira anguina | Haljala Stage
  60. Lytospira evolvens | Aseri Stage
  61. Lytospira tubicina | Kunda Stage
  62. Lytospira valida | Pirgu Stage
  63. Lytospira? exarta | Uhaku Stage
  64. Maclurites neritoides | Pirgu Stage
  65. Mannegaardina hedei | Ludlow
  66. Megalomphala contorta | Jõhvi Substage → Keila Stage
  67. Megalomphala crassa | Vormsi Stage → Pirgu Stage
  68. Megalomphala crassiuscula | Jõhvi Formation → Keila Stage
  69. Megalomphala cycloides | Keila Stage
  70. Megalomphala gotlandica | upper Silurian
  71. Megalomphala majorae | upper Silurian
  72. Megalomphala planorbiforma | Lower Ordovician
  73. Megalomphala taenia | upper Silurian
  74. Megalomphala wilfredi | lower Silurian
  75. Onychochilus physa | Ludlow
  76. Onychochilus reticulatum | Ludlow
  77. Pachystrophia dilatata | Kunda Stage
  78. Pachystrophia vortex | Vormsi Stage
  79. Pararaphistoma mutans | Lasnamägi Stage
  80. Pararaphistoma scalare |
  81. Pararaphistoma vaginati | Kunda Stage
  82. Pernericirrus lindstroemi | Ludfordian
  83. Phragmolites excavatus | Upper Ordovician
  84. Phragmolites lindstroemi | Upper Ordovician
  85. Poleumita discors | Jaagarahu Stage
  86. Poleumita rugosa | Jaani Stage
  87. Prosolarium limata |
  88. Proturritella acutum | Kunda Stage
  89. Proturritella angulosa | Aseri Stage
  90. Proturritella cingulata | Kunda Stage
  91. Proturritella gradata | Kunda Stage
  92. Proturritella piersalense | Pirgu Stage
  93. Proturritella reticulata | Kunda Stage
  94. Proturritella trimarginata | Kunda Stage → Lasnamägi Stage
  95. Pseudocryptaenia lahuseni | Oandu Stage
  96. Pseudocryptaulina chamaeconus | Nabala Stage → Vormsi Stage
  97. Ruedemannia aista | Porkuni Stage
  98. Ruedemannia borkholmiensis | Porkuni Stage
  99. Ruedemannia tolli | Porkuni Stage
  100. Salpingostoma carrolense | Kunda Stage
  101. Salpingostoma compressum | Uhaku Stage → Haljala Stage
  102. Salpingostoma locator |
  103. Salpingostoma megalostoma | Lasnamägi Stage
  104. Salpingostoma verrucosum | Kunda Stage
  105. Semizona bella | Katian
  106. Sinuites nitens | Nabala Stage → Vormsi Stage
  107. Sinuites rugulosus | Kunda Stage → Aseri Stage
  108. Subulites amphora | Idavere Substage → Rakvere Stage
  109. Subulites gigas | Vormsi Stage → Pirgu Stage
  110. Subulites priscus | Aseri Stage → Kukruse Stage
  111. Subulites revalensis | Lasnamägi Stage → Kukruse Stage
  112. Subulites subula | Rakvere Stage → Pirgu Stage
  113. Temnodiscus accola | Kukruse Stage → Keila Stage
  114. Temnodiscus pleurogonus |
  115. Tetranota conspicua | Nabala Stage → Vormsi Stage
  116. Tetranota jugata |
  117. Tetranota lineata |
  118. Tetranota obtusangulata |
  119. Trochomphalus borkholmiensis | Vormsi Stage → Porkuni Stage
  120. Trochomphalus dimidiatus | Porkuni Stage
  121. Trochonema minus | Porkuni Stage
  122. Trochonema panderi | Porkuni Stage
  123. Trochonema peraltum | Porkuni Stage
  124. 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.

Selection of related publications

  • Kröger & Aubrechtová, 2017(2018). Cephalopods from reef limestone of the Vasalemma Formation, northern Estonia (latest Sandbian, Upper Ordovician) and the establishment of a local warm-water fauna [DOI]
  • 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]
  • Ebbestad & Högström, 2007b. Locality descriptions, the Siljan District
  • Frisk & Ebbestad, 2007. Paragastropoda, Tergomya and Gastropoda (Mollusca) from the Upper Ordovician Dalby Limestone, Sweden [DOI]
  • 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)
  • 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