Orthogastropoda
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Orthogastropoda was a major taxonomic grouping of snails and slugs, an extremely large subclass within the huge class Gastropoda according to the older
taxonomy of the Gastropoda (Ponder & Lindberg, 1997) The taxonomy of the Gastropoda, as revised by Winston Ponder and David R. Lindberg in 1997, is an older taxonomy of the class Gastropoda, the class of molluscs consisting of all snails and slugs. The full name of the work in which this taxonom ...
. This taxon is no longer used according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005. Ponder and
Lindberg Lindberg is a municipality in the district of Regen in Bavaria in Germany in the immediate neighbourhood of the larger town Zwiesel. Location Lindberg lies in the Danube Forest (''Donau-Wald'') region in the middle of the Bavarian Forest on ...
(1997) in the book ''The Southern Synthesis'', showed the Orthogastropoda as one of two subclasses of the Gastropoda, the other subclass being a very much smaller group called the Eogastropoda, which contained only 5 families of true limpets. This subclass, Orthogastropoda, which one perhaps could call the ''true snails'', was defined most concisely as all gastropods which were not members of
Patellogastropoda The Patellogastropoda, common name true limpets and historically called the Docoglossa, are members of a major phylogenetic group of marine gastropods, treated by experts either as a clade or as a taxonomic order. The clade Patellogastropoda is d ...
, the true limpets. The Orthogastropoda appeared to form a clade which was supported by unambiguous synapomorphies. These synapomorphies (a series of characteristics that appear in its members but not in the other forms it diverged from) were the identifying characteristics of the clade. Some of the characteristics were: *eyes with a vitreous body on eyestalks. *paired jaws, with their position free from the buccal mass *a single kidney on the right side of pericardium *a flexoglossate radula (with a flexible radular membrane). The radula is the snail's tongue, used as a rasping tool. *unpaired osphradium (olfactory organ). *lateral ciliated zones of osphradium *a single left hypobranchial gland (on organ at gill, which releases secretions, such as the reddish dye
Tyrian purple Tyrian purple ( grc, πορφύρα ''porphúra''; la, purpura), also known as Phoenician red, Phoenician purple, royal purple, imperial purple, or imperial dye, is a reddish-purple natural dye. The name Tyrian refers to Tyre, Lebanon. It i ...
). *an unpaired ctenidium (a comblike respiratory structure in certain mollusks)


Taxonomy

The following is based on the somewhat out-dated
taxonomy of the Gastropoda (Ponder & Lindberg, 1997) The taxonomy of the Gastropoda, as revised by Winston Ponder and David R. Lindberg in 1997, is an older taxonomy of the class Gastropoda, the class of molluscs consisting of all snails and slugs. The full name of the work in which this taxonom ...
. For the most up-to-date system of gastropod taxonomy, please see
Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005) The taxonomy of the Gastropoda as it was revised in 2005 by Philippe Bouchet and Jean-Pierre Rocroi is a system for the scientific classification of gastropod mollusks. (Gastropods are a taxonomic class of animals which consists of snails and s ...
. ''Superorder Cocculiniformia Haszprunar, 1987'' *Superfamily Cocculinoidea Dall, 1882 *Superfamily Lepetelloidea Dall, 1882 (deep sea limpets) ''Superorder
incertae sedis ' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertain ...
(Hot Vent Taxa)'' *Order Neomphaloida Sitnikova & Starobogatov, 1983 **Superfamily Neomphaloidea McLean, 1981 (hydrothermal vent limpets) **Superfamily Peltospiroidea McLean, 1989 ''Superorder
Vetigastropoda Vetigastropoda is a major taxonomic group of sea snails, marine gastropod mollusks that form a very ancient lineage. Taxonomically the Vetigastropoda are sometimes treated as an order, although they are treated as an unranked clade in Bouchet ...
Salvini-Plawen, 1989'' (limpets) *Superfamily Fissurelloidea Flemming, 1822 (keyhole limpets) *Superfamily
Haliotoidea Haliotoidea is a superfamily of sea snails, marine gastropod mollusks in the subclass Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Vald ...
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
(abalones) *Superfamily
Lepetodriloidea Lepetodriloidea is a superfamily of small to large sea snails, hydrothermal vent limpets, marine gastropod mollusks in the clade Vetigastropoda Vetigastropoda is a major taxonomic group of sea snails, marine gastropod mollusks that form ...
McLean, 1988 (hydrothermal vent limpets) *Superfamily
Pleurotomarioidea Pleurotomarioidea is a superfamily of small to large marine gastropods included in the order Pleurotomariida of the subclass Vetigastropoda. These are the slit shells, originally named Pleurotomariacea, in keeping with the convention for namin ...
Swainson, 1840 (slit shells) *Superfamily
Seguenzioidea Seguenzioidea is a superfamily of minute to medium-sized sea snails, marine gastropod mollusks in the clade Vetigastropoda.Gofas, S. (2010). Seguenzioidea. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Acce ...
Verrill, 1884 *Superfamily Trochoidea
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
(top shells) ''Superorder Neritaemorphi Koken, 1896'' *Order Neritopsina Cox & Knight, 1960 **Superfamily Neritoidea
Lamarck Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolo ...
, 1809
''Superorder Caenogastropoda Cox, 1960'' *Order Architaenioglossa Haller, 1890 **Superfamily
Ampullarioidea Ampullarioidea is a taxonomic superfamily of freshwater snails, aquatic gastropod mollusks within the informal group Architaenioglossa, which belongs to the clade Caenogastropoda (unassigned). Families * Ampullariidae Gray, 1824 * † N ...
J.E. Gray, 1824 **Superfamily
Cyclophoroidea Cyclophoroidea is a superfamily of land snails with an operculum, terrestrial gastropods within the informal group Architaenioglossa, that belongs to the clade Caenogastropoda.Bouchet, P.; Rosenberg, G.; Gofas, S. (2015). Cyclophoroidea Gray, ...
J.E. Gray, 1847 (terrestrial) *Order
Sorbeoconcha Sorbeoconcha is a taxonomic clade of snails, i.e. gastropods, mainly marine species with gills and opercula, within the clade Caenogastropoda. The taxon Sorbeoconcha was named by Winston Ponder and David R. Lindberg in 1997. Taxonomy 1 ...
Ponder &
Lindberg Lindberg is a municipality in the district of Regen in Bavaria in Germany in the immediate neighbourhood of the larger town Zwiesel. Location Lindberg lies in the Danube Forest (''Donau-Wald'') region in the middle of the Bavarian Forest on ...
, 1997
**Suborder Cerithiimorpha Golikov & Starobogatov, 1975 ***Superfamily Spanionematoidea **Suborder Hypsogastropoda Ponder &
Lindberg Lindberg is a municipality in the district of Regen in Bavaria in Germany in the immediate neighbourhood of the larger town Zwiesel. Location Lindberg lies in the Danube Forest (''Donau-Wald'') region in the middle of the Bavarian Forest on ...
, 1997
***Infraorder
Littorinimorpha Littorinimorpha is a large order of snails, gastropods, consisting primarily of sea snails (marine species), but also including some freshwater snails ( aquatic species) and land snails ( terrestrial species).Bouchet P. & Rocroi J.-P. (Ed.); Frý ...
Golikov & Starobogatov, 1975 ****Superfamily
Calyptraeoidea The Calyptraeidae are a family of small to medium-sized marine prosobranch gastropods. MolluscaBase. Calyptraeidae Lamarck, 1809. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=141 o ...
Lamarck Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolo ...
, 1809
****Superfamily Capuloidea J. Fleming, 1822 ****Superfamily Carinarioidea Blainville, 1818 ****Superfamily
Cingulopsoidea The Cingulopsoidea is a superfamily of sea snails, marine gastropod molluscs in the clade Littorinimorpha. Families The following three families have been recognized in the taxonomy of Bouchet & Rocroi (2005): *Family Cingulopsidae Frette ...
Fretter & Patil, 1958 ****Superfamily
Cypraeoidea Cypraeoidea, the cowries and cowry allies, is a superfamily of sea snails, marine gastropods included in the clade Littorinimorpha. This superfamily had been called Cypraeacea and was named by Rafinesque in 1815.MolluscaBase (2018). Cypraeoidea ...
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
(cowries) ****Superfamily Ficoidea
Meek Meekness is an attribute of human nature and behavior that has been defined as an amalgam of righteousness, inner humility, and patience. Meekness has been contrasted with humility alone insomuch as humility simply refers to an attitude towards o ...
, 1864
****Superfamily Laubierinoidea Warén & Bouchet, 1990 ****Superfamily
Littorinoidea Littorinoidea are a superfamily of both sea snails and land snails which have a gill and an operculum, terrestrial and marine gastropod mollusks in the clade Littorinimorpha. The terrestrial family within this group, the Pomatiidae, are ...
(Children), 1834 (periwinkles) ****Superfamily
Naticoidea Naticidae, common name moon snails or necklace shells, is a family of medium to large-sized predatory sea snails, marine gastropod molluscs in the clade Littorinimorpha. The shells of the species in this family are mostly globular in shape. ...
Forbes, 1838 (moon shells) ****Superfamily Rissooidea J.E. Gray, 1847 (Risso shells) ****Superfamily Stromboidea
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
(true conchs) ****Superfamily
Tonnoidea The Tonnoidea are a superfamily of sea snails, marine gastropod molluscs in the order Littorinimorpha. This superfamily includes many very large species. Nomenclature Beu (1998, 2008) favours usage of Tonnoidea and Tonnidae rather than Cas ...
Suter, 1913 ****Superfamily Trivioidea Troschel, 1863 ****Superfamily
Vanikoroidea Vanikoroidea is a superfamily of sea snails, marine gastropod molluscs in the clade Littorinimorpha. The superfamily Eulimoidea is a synonym of Vanikoroidea. Families Families within the superfamily Vanikoroidea include: *Family Eulimidae ...
J.E. Gray, 1840 ****Superfamily
Velutinoidea Velutinoidea is a superfamily of sea snails, marine gastropod molluscs in the clade Littorinimorpha. Taxonomy *Family Velutinidae Gray, 1840 **Subfamily Velutininae Gray, 1840 **Subfamily Lamellariinae d’Orbigny, 1841 *Family Trivii ...
J.E. Gray, 1840 ****Superfamily
Vermetoidea The Vermetoidea, the worm snails or worm shells, are a taxonomic superfamily of small to medium-sized sea snails, marine gastropod molluscs in the order Littorinimorpha.MolluscaBase (2019). MolluscaBase. Vermetoidea Rafinesque, 1815. Accessed th ...
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
(worm shells) ****Superfamily Xenophoroidea Troschel, 1852 (carrier shells) ***Infraorder Neogastropoda Thiele, 1929 ****Superfamily
Buccinoidea Buccinoidea is a taxonomic superfamily of very small to large predatory sea snails, marine gastropod mollusks. This superfamily is in the clade Neogastropoda according to the taxonomy of the Gastropoda (Bouchet & Rocroi, 2005). It had been ...
(whelks, false tritions) ****Superfamily
Cancellarioidea Volutoidea is a taxonomic superfamily of predatory sea snails, marine gastropod mollusks in the clade Neogastropoda.MolluscaBase eds. (2020). MolluscaBase. Volutoidea Rafinesque, 1815. Accessed through: World Register of Marine Species at: http ...
Forbes & Hanley, 1851 ****Superfamily
Conoidea Conoidea is a superfamily of predatory sea snails, marine gastropod mollusks within the suborder Hypsogastropoda. This superfamily is a very large group of marine mollusks, estimated at about 340 recent valid genera and subgenera, and conside ...
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
****Superfamily
Muricoidea Neogastropoda is an order of sea snails, both freshwater and marine gastropod molluscs. Description The available fossil record of Neogastropoda is relatively complete, and supports a widely accepted evolutionary scenario of an Early Cr ...
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
***Infraorder
Ptenoglossa The Ptenoglossa is an informal taxonomic group of sea snails. This group was considered paraphyletic or polyphyletic by Ponder and Lindberg (1997) in their classification of gastropod molluscs. The database WoRMS considers this suborder as b ...
J.E. Gray, 1853 ****Superfamily Eulimoidea Philippi, 1853 ****Superfamily Janthinoidea
Lamarck Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolo ...
, 1812
****Superfamily
Triphoroidea Triphoroidea is a superfamily of minute sea snails, marine gastropod molluscs or micromolluscs within the informal group Ptenoglossa. Taxonomy Families and subfamilies within this superfamily are as follows: * † '' Berendinellidae'' Guzhov, 20 ...
J.E. Gray, 1847 **Suborder Discopoda P. Fischer, 1884 - sometimes included in Cerithiimorpha ***Superfamily
Campaniloidea The Campaniloidea is a superfamily of sea snails, marine gastropod mollusks. The Campaniloidea are unassigned in the clade Caenogastropoda. Taxonomy The following four families have been recognized in the taxonomy of Bouchet & Rocroi (2005) ...
Douvillé, 1904 ***Superfamily Cerithioidea Férussac, 1822 **Suborder Murchisoniina Cox & Knight, 1960 ***Superfamily Loxonematoidea Koken, 1889 ''Superorder
Heterobranchia Heterobranchia, the ''heterobranchs'' (meaning "different-gilled snails"), is a taxonomic clade of snails and slugs, which includes marine, aquatic and terrestrial gastropod mollusks. Heterobranchia is one of the main clades of gastropods. Cur ...
J.E. Gray, 1840'' *Order
Heterostropha Heterostropha was a previously used taxonomic category, an order of sea snails, within the superorder Heterobranchia. In the most current gastropod taxonomy, that of Bouchet & Rocroi, this taxon is no longer in use. The molluscs that were plac ...
P. Fischer, 1885 **Superfamily Architectonicoidea J.E. Gray, 1840 ***Family
Architectonicidae Architectonicidae, common name the staircase shells or sundials, are a family of sea snails, marine gastropod mollusks in the informal group "Lower Heterobranchia" (= Allogastropoda) of the clade Heterobranchia. The extinct families † Amphito ...
Gray, 1850 **Superfamily Omalogyroidea G.O. Sars, 1878 **Superfamily
Pyramidelloidea Pyramidelloidea is a superfamily of mostly very small sea snails, marine gastropod mollusks and micromollusks within the clade Panpulmonata. This is a voluminous taxon: above the species level close to 400 named taxa are referred to this g ...
J.E. Gray, 1840 **Superfamily Rissoelloidea J.E. Gray, 1850 **Superfamily Valvatoidea J.E. Gray, 1840 *Order Opisthobranchia Milne-Edwards, 1848 **Suborder Nudibranchia Blainville, 1814 (nudibranchs) ***Infraorder Anthobranchia Férussac, 1819 ****Superfamily
Doridoidea Doridoidea, commonly known as dorid nudibranchs (and previously known as the taxon Cryptobranchia), are a taxonomic superfamily of medium to large, shell-less sea slugs, marine gastropod mollusks in the clade Doridacea, included in the clade Nu ...
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
****Superfamily Doridoxoidea Bergh, 1900 ****Superfamily
Onchidoridoidea Onchidoridoidea is a taxonomic superfamily of sea slugs, dorid nudibranchs, marine gastropod molluscs. Families Families within the superfamily Onchidoridoidea are as follows:Bouchet, P.; Gofas, S. (2015)Onchidoridoidea Gray, 1827.In: MolluscaB ...
Alder & Hancock, 1845 ****Superfamily
Polyceroidea Polyceroidea is a taxonomic superfamily of sea slugs, specifically dorid nudibranchs, marine gastropod mollusks in the clade Doridacea. Families Families within the superfamily Polyceroidea include: *Family Aegiridae - In Bouchet & Rocroi (20 ...
Alder & Hancock, 1845 ***Infraorder
Cladobranchia The Cladobranchia are a taxonomic clade of nudibranchs, sea slugs, marine gastropod molluscs in the clade Dexiarchia. Taxonomy clade Metarminida * Superfamily Metarminoidea This name is not available as a Superfamily name as it is not based o ...
Willan & Morton, 1984 ****Superfamily
Aeolidioidea Aeolidioidea is a superfamily of sea slugs, the aeolid nudibranchs. They are marine gastropod molluscs in the suborder Cladobranchia. Taxonomy As of 2019, the superfamily Aeolidioidea consisted of the following families: * Aeolidiidae Gray, ...
J.E. Gray, 1827 ****Superfamily
Arminoidea Arminoidea is a superfamily of small sea slugs, marine gastropod molluscs in the clade Nudibranchia. Arminoidea is the only superfamily in the clade Euarminida. Families A study, published in 2000, has demonstrated that Arminoidea is paraphyle ...
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1814
****Superfamily
Dendronotoidea Dendronotoidea is a taxonomic superfamily of small colorful sea slugs or nudibranchs, aeolid nudibranchs. MolluscaBase eds. (2022). MolluscaBase. Dendronotoidea Allman, 1845. Accessed through: World Register of Marine Species at: http://www.ma ...
Allman, 1845 ****Superfamily Metarminoidea Odhner in Franc, 1968 **Suborder Anaspidea P. Fischer, 1883 (sea hares) ***Superfamily Akeroidea Pilsbry, 1893 ***Superfamily
Aplysioidea Aplysioidea is a Taxonomic rank, superfamily of predatory sea snails, marine (ocean), marine gastropod Mollusc, mollusks within the clade Anaspidea.Gofas, S. (2010). Akeroidea. In: MolluscaBase (2017). Accessed through: World Register of Marine S ...
Lamarck Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolo ...
, 1809
**Suborder
Cephalaspidea The order Cephalaspidea, also known as the headshield slugs and bubble snails, is a major taxon of sea slugs and bubble snails, marine gastropod mollusks within the larger clade Euopisthobranchia.Jörger K. M., Stöger I., Kano Y., Fukuda H., ...
P. Fischer, 1883 ***Superfamily
Acteonoidea Acteonoidea is a superfamily of sea snails, or bubble snails, marine gastropod mollusks. Taxonomy In the taxonomy of Bouchet & Rocroi (2005), the superfamily Acteonoidea has been included into the informal group "Lower Heterobranchia" ( ...
D'Orbigny Alcide Charles Victor Marie Dessalines d'Orbigny (6 September 1802 – 30 June 1857) was a French naturalist who made major contributions in many areas, including zoology (including malacology), palaeontology, geology, archaeology and anthrop ...
, 1835
***Superfamily
Bulloidea Bulloidea is a superfamily of sea snails, or bubble snails, marine gastropod mollusks.Bouchet, P. (2010). Bulloidea Gray, 1827. In: MolluscaBase (2016). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia. ...
Lamarck Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolo ...
, 1801
***Superfamily Cylindrobulloidea Thiele, 1931 ***Superfamily Diaphanoidea Odhner, 1914 ***Superfamily
Haminoeoidea Haminoeoidea is a taxonomic superfamily of small sea snails or bubble shells, marine opisthobranch gastropod mollusks in the clade Cephalaspidea, the headshield slugs and bubble snails. These cephalaspideans do have distinct anatomical and mo ...
Pilsbry, 1895 ***Superfamily
Philinoidea Philinoidea is a taxonomic superfamily of sea slugs, specifically headshield slugs, marine gastropod mollusks in the order Cephalaspidea. MolluscaBase eds. (2021). MolluscaBase. Philinoidea Gray, 1850 (1815). Accessed through: World Register of ...
J.E. Gray, 1850 ***Superfamily Ringiculoidea Philippi, 1853 **Suborder
Gymnosomata Sea angels (clade Gymnosomata) are a large group of small free-swimming sea slugs, not to be confused with Cnidarians (Jellyfish and other similar creatures), classified into six different families. They are pelagic opisthobranchs in the clade Gy ...
Blainville, 1824 (sea angels) **Suborder
Notaspidea Notaspidea, also known as the sidegill slugs, is an artificial grouping of sea slugs which is now split into two unrelated groups, the Umbraculida and the Pleurobranchomorpha. Taxonomic history Notaspidea, also known as the sidegill slugs, was a ...
P. Fischer, 1883 ***Superfamily Pleurobranchoidea Férussac, 1822 ***Superfamily Tylodinoidea J.E. Gray, 1847 **Suborder
Sacoglossa Sacoglossa, commonly known as the sacoglossans or the "solar-powered sea slugs", are a superorder of small sea slugs and sea snails, marine gastropod mollusks that belong to the clade Heterobranchia. Sacoglossans live by ingesting the cellular co ...
Von Ihering, 1876 ***Superfamily
Oxynooidea Oxynooidea is a superfamily of small sea snails, bubble snails and bivalved gastropods, marine gastropod mollusks within the superorder Sacoglossa. MolluscaBase eds. (2021). MolluscaBase. Oxynooidea Stoliczka, 1868 (1847). Accessed through: Wor ...
H. & A. Adams, 1854 **Suborder
Thecosomata Sea butterflies, scientific name Thecosomata (thecosomes, "case / shell-body"), are a taxonomic suborder of small pelagic swimming sea snails. They are holoplanktonic opisthobranch gastropod mollusks. Most Thecosomata have some form of calcifi ...
Blainville, 1824 (sea butterflies) ***Infraorder
Euthecosomata ''Euthecosomata'' is a taxonomic unit used to classify sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda ...
****Superfamily
Limacinoidea The superfamily Limacinoidea is a taxonomic group of small floating sea snails, pelagic marine opisthobranch gastropod mollusks.Bouchet, P. (2012). Limacinoidea. Accessed through: World Register of Marine Species at http://www.marinespecies.org/ ...
****Superfamily
Cavolinioidea The superfamily Cavolinioidea is the most speciose group of sea butterflies. They belong to the suborder Euthecosomata. MolluscaBase eds. (2021). MolluscaBase. Cavolinioidea Gray, 1850 (1815). Accessed through: World Register of Marine Species at ...
***Infraorder Pseudothecosomata ****Superfamily Peraclidoidea ****Superfamily
Cymbulioidea Cymbulioidea is a taxonomic superfamily of pelagic "sea butterflies", one group of swimming sea snails. They are holoplanktonic opisthobranch gastropod molluscs in the clade Thecosomata. Anatomy Some groups within this superfamily possess ...
*Order Pulmonata Cuvier in Blainville, 1814 (pulmonates) **Subinfraorder Orthurethra ***Superfamily Achatinelloidea Gulick, 1873 ***Superfamily
Cochlicopoidea Pupilloidea is a superfamily of small and very small air-breathing land snails, terrestrial gastropod mollusks in the infraorder ''Pupilloidei'' . Taxonomy This superfamily contains the following families: * Achatinellidae Gulick, 1873 * Agar ...
Pilsbry, 1900 ***Superfamily
Partuloidea Pupilloidea is a superfamily of small and very small air-breathing land snails, terrestrial gastropod mollusks in the infraorder ''Pupilloidei'' . Taxonomy This superfamily contains the following families: * Achatinellidae Gulick, 1873 * Agar ...
Pilsbry, 1900 ***Superfamily
Pupilloidea Pupilloidea is a superfamily of small and very small air-breathing land snails, terrestrial gastropod mollusks in the infraorder ''Pupilloidei'' . Taxonomy This superfamily contains the following families: * Achatinellidae Gulick, 1873 * A ...
Turton, 1831 **Subinfraorder
Sigmurethra Sigmurethra is a taxonomic category of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This is an informal group which includes most land snails and slugs. The two strong synapomorphies of Sigmurethra are a ...
***Superfamily Acavoidea Pilsbry, 1895 ***Superfamily
Achatinoidea The Achatinoidea are a superfamily of air-breathing land snails and slugs, terrestrial gastropod mollusks in the informal group Sigmurethra. 2005 taxonomy According to taxonomy of the Gastropoda by Bouchet & Rocroi, 2005 there are four fami ...
Swainson, 1840 ***Superfamily Aillyoidea Baker, 1960 ***Superfamily Arionoidea J.E. Gray in Turnton, 1840 ***Superfamily Buliminoidea Clessin, 1879 ***Superfamily Camaenoidea Pilsbry, 1895 ***Superfamily Clausilioidea Mörch, 1864 ***Superfamily Dyakioidea Gude & Woodward, 1921 ***Superfamily Gastrodontoidea Tryon, 1866 ***Superfamily
Helicoidea Helicoidea is a taxonomic superfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora. Taxonomy 2005 taxonomy There are 19 families within the superfamily Helicoidea according to the ta ...
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
***Superfamily Helixarionoidea Bourguignat, 1877 ***Superfamily Limacoidea
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
***Superfamily Oleacinoidea H. & A. Adams, 1855 ***Superfamily
Orthalicoidea The Orthalicoidea are a superfamily of air-breathing land snails, terrestrial gastropod mollusks in the infraorder Orthalicoidei of the suborder HelicinaMolluscaBase eds. (2021). MolluscaBase. Simpulopsidae Schileyko, 1999. Accessed through: W ...
Albers-Martens, 1860 ***Superfamily Plectopylidoidea Moellendorf, 1900 ***Superfamily Polygyroidea Pilsbry, 1894 ***Superfamily
Punctoidea Punctoidea is a superfamily of air-breathing land snails and slugs, terrestrial pulmonate gastropod mollusks in the informal group Sigmurethra. Taxonomy The superfamily Punctoidea is classified within the clade Stylommatophora within the clade ...
Morse, 1864 ***Superfamily
Rhytidoidea The Rhytidoidea are a superfamily of air-breathing land snails and slugs, terrestrial gastropod mollusks in the suborder Helicina. MolluscaBase eds. (2021). MolluscaBase. Rhytidoidea Pilsbry, 1893. Accessed through: World Register of Marine Spec ...
Pilsbry, 1893 ***Superfamily Sagdidoidera Pilsbry, 1895 ***Superfamily Staffordioidea Thiele, 1931 ***Superfamily
Streptaxoidea Streptaxoidea is a superfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the suborder Achatinina of the order Stylommatophora. Taxonomy 2005 taxonomy There have been recognized the only family Streptaxidae wi ...
J.E. Gray, 1806 ***Superfamily Strophocheiloidea Thiele, 1926 ***Superfamily Trigonochlamydoidea Hese, 1882 ***Superfamily Zonitoidea Mörch, 1864 **Infraorder Acteophila Dall, 1885 ***Superfamily Melampoidea Stimpson, 1851 **Infraorder Trimusculiformes Minichev & Starobogatov, 1975 ***Superfamily Trimusculoidea Zilch, 1959 **Infraorder Stylommatophora A. Schmidt, 1856 (land snails) **Suborder Basommatophora Keferstein in Bronn, 1864 (freshwater pulmonates) ***Superfamily Acroloxoidea Thiele, 1931 ***Superfamily Amphiboloidea J.E. Gray, 1840 ***Superfamily Chilinoidea H. & A. Adams, 1855 ***Superfamily
Glacidorboidea The Glacidorbidae is a taxonomic family of freshwater snails. Taxonomy 2005 taxonomy Glacidorbidae is the only family in the superfamily Glacidorboidea. Glacidorboidea has been classified within the informal group Lower Heterobranchia in th ...
Ponder, 1986 ***Superfamily
Lymnaeoidea Lymnaeoidea, common name the pond snails, is a taxonomic superfamily of small to large air-breathing freshwater snails, aquatic pulmonate gastropod mollusks, that belong to the superorder Hygrophila.MolluscaBase eds. (2020). MolluscaBase ...
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
***Superfamily
Planorboidea Planorboidea is a superfamily of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks. All of the gastropods in this superfamily are sinistral in shell coiling. The monophyly of Planorboidea was confirmed by Albrecht et al ...
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
***Superfamily
Siphonarioidea Siphonarioidea is a taxonomic superfamily of air-breathing sea snails or false limpets, marine gastropod mollusks in the clade Panpulmonata. Distribution The Siphonarioidea are broadly distributed across the globe, however they are known t ...
J.E. Gray, 1840 **Suborder
Eupulmonata Eupulmonata is a taxonomic clade of air-breathing snails. The great majority of this group are land snails and slugs, but some are marine and some are saltmarsh snails that can tolerate salty conditions. Linnean taxonomy *Suborder Eupulmonat ...
Haszprunar & Huber, 1990 **Suborder Systellommatophora Pilsbry, 1948 ***Superfamily Onchidioidea
Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimat ...
, 1815
***Superfamily Otinoidea H. & A. Adams, 1855 ***Superfamily Rathouisioidea Sarasin, 1889


References


''Gastropods on Land'' by G.M. Barker. Chapter 1 available online in PDF format
* {{Taxonbar, from=Q132766 Obsolete gastropod taxa Patellogastropoda Mollusc subclasses ru:Брюхоногие#Классификация