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This overview lists proposed changes in the taxonomy of gastropods at the family level and above since 2005, when the taxonomy of the Gastropoda by Bouchet & Rocroi (2005) was published. In other words, these are recent updates in the way various groups of snails and slugs are classified. Changes in subfamilies are outlined in the respective articles about each particular family. Unchanged taxa are not listed here. In one of the largest recent changes (affecting the most species of gastropods), Klussmann-Kolb ''et al.'' (2008) showed that the traditional classification of the Euthyneura needed to be reconsidered. The change was subsequently made by Jörger ''et al.'' (2010),〔 who redefined the major groups within the Heterobranchia. A great number of major changes have been made within the classification of the Conoidea since 2011. ==Helcionelloida (not gastropods)== It has become clear that the fossil taxon Helcionelloida does ''not'' belong to the class Gastropoda; it is now a separate class within the Mollusca. P. Yu. Parkhaev (2006, 2007)〔P. Yu. Parkhaev (2006) "''(Adaptive radiation of the Cambrian helcionelloid mollusks (Gastropoda, Archaeobranchia). )''" In: S.V. Rozhnov (ed.) ''"Evolution of the biosphere and biodiversity. Towards the 70th anniversary of A. Y. Rozanov"''. 2006. Moscow, pp. 282-296.〕 created the class Helcionelloida, whose members were previously treated as "Paleozoic molluscs of uncertain systematic position" ''sensu'' Bouchet & Rocroi. Subclass Archaeobranchia Parkhaev, 2001 * Order Helcionelliformes Golikov & Starobogatov, 1975 * *Superfamily Helcionelloidea Wenz, 1938 : * *Family Helcionellidae Wenz, 1938 : * *Family Igarkiellidae Parkhaev, 2001 : * *Family Coreospiridae Knight, 1947 * *Superfamily Yochelcionelloidea Runnegar & Jell, 1976 : * *Family Trenellidae Parkhaev, 2001 : * *Family Yochelcionellidae Runnegar & Jell, 1976 : * *Family Stenothecidae Runnegar & Jell, 1980 * * * *Subfamily Stenothecinae Runnegar & Jell, 1980 * * * *Subfamily Watsonellinae Parkhaev, 2001 * Order Pelagiellifomes MacKinnon, 1985 * *Family Pelagiellidae Knight, 1952 * *Family Aldanellidae Linsley et Kier, 1984 Subclass Divasibranchia Minichev & Starobogatov, 1975 * Order Khairkhaniifomes Parkhaev, 2001 * *Family Khairkhaniidae Missarzhevsky, 1989 Subclass Dextrobranchia Minichev & Starobogatov, 1975 * Order Onychochiliformes Minichev & Starobogatov, 1975 * *Family Onychochilidae Koken, 1925 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「changes in the taxonomy of gastropods since 2005」の詳細全文を読む スポンサード リンク
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