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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropoda
Subclassis: Heterobranchia
Infraclassis: Euthyneura
Cohors: Tectipleura
Subcohors: Panpulmonata
Superordo: Eupulmonata
Ordo: Stylommatophora
Subordo: Helicina
Infraordo: Helicoidei
Superfamilia: Helicoidea
Familiae (16): CamaenidaeCanariellidaeCepolidaeElonidaeGeomitridaeHelicidaeHelicodontidaeHygromiidaeLabyrinthidaePleurodontidaePolygyridaeSphincterochilidaeThysanophoridaeTrichodiscinidaeTrissexodontidaeXanthonychidae

Note: Cochlicellidae now Geomitridae Geomitrinae Cochlicellini
Helminthoglyptidae now Xanthonychidae Helminthoglyptinae
Monadeniidae now Xanthonychidae Monadeniinae
Name

Helicoidea Rafinesque, 1815
References

Rafinesque, C.S. 1815. Analyse de la nature, ou tableau de l'univers et des corps organisés. Palerme: L'Imprimerie de Jean Barravecchia. 224 pp. BHL Reference page. : 143.
Bouchet, P. & J.-P. Rocroi. 2005. Classification and nomenclator of gastropod families. Malacologia 47(1-2): 269, 283.

Links

Helicoidea in the World Register of Marine Species

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 taxonomy of the Gastropoda by Bouchet & Rocroi, 2005.[1][2]

Helicidae
Bradybaenidae
Camaenidae
Cepolidae
Cochlicellidae
Elonidae
Epiphragmophoridae
Halolimnohelicidae
Helicodontidae
Helminthoglyptidae
Humboldtianidae
Hygromiidae
Monadeniidae
Pleurodontidae
Polygyridae
Sphincterochilidae
Thysanophoridae
Trissexodontidae
Xanthonychidae

According to H. Nordsieck[3] the family Xanthonychidae (sensu Hausdorf & Bouchet) is probably polyphyletic (contains several different lineages) and therefore should be divided into several families.
2012 taxonomy

Thompson & Naranjo-García (2012) described a new family Echinichidae and placed it to the superfamily Xanthonychoidea.[4] Therefore, the family Xanthonychidae was moved from Helicoidea to Xanthonychoidea.
2015 taxonomy

Razkin et al. (2015)[5] reorganized classification into monophyletic taxa according to the molecular phylogeny. This study is focus on Western Palaearctic species. The Hygromiidae s.l. family was divided into three families, Canariellidae, Geomitridae and Hygromiidae. Moreover, the family Cochlicellidae was including within the Geomitridae family as a tribe (Cochlicellini).

The classification proposed for Western Palaearctic Helicoidea is as follows:


References

Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
Poppe G. T. & Tagaro S. P. (2006). "The new classification of Gastropods according to Bouchet & Rocroi, 2005". Visaya, février 2006: 10 pp. PDF Archived 27 September 2007 at the Wayback Machine.
Higher classification of the Helicoidea and the molecular analyses of their phylogeny (by Hartmut Nordsieck) Archived 29 November 2015 at the Wayback Machine
Thompson F. G. & Naranjo-García E. (2012). "Echinichidae, a new family of dart-bearing helicoid slugs from Mexico, with the description of a new genus and three new species (Gastropoda: Pulmonata: Xanthonychoidea)". Archiv für Molluskenkunde 141(2): 197–208. doi:10.1127/arch.moll/1869-0963/141/197-208. preview.
Razkin O., Gómez-Moliner B. J., Prieto C. E., Martínez-Ortí A., Arrébola J. R., Chueca L. J. & Madeira M. J. (2015). "Molecular phylogeny of the western Palearctic Helicoidea (Gastropoda, Stylommatophora)". Molecular Phylogenetics and Evolution 83: 99–117. doi:10.1016/j.ympev.2014.11.014.

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