Trochoidea is a superfamily of small to very large vetigastropod sea snails with gills and an operculum.Gofas, S. (2013). Trochoidea. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=156489 on 2013-06-29 Species within this superfamily have nacre as the inner shell layer. The families within this superfamily include the Trochidae, the top snails. This superfamily is the largest vetigastropodan superfamily, containing more than 2,000 species.
Taxonomy 2005 taxonomy This superfamily consisted of nine following families (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):
Trochidae Rafinesque, 1815 Calliostomatidae Thiele, 1924 (1847) † Elasmonematidae Knight, 1956 † Eucochlidae Bandel, 2002 † Microdomatidae Wenz, 1938 † Proconulidae Cox, 1960 Solariellidae Powell, 1951 – synonym: Minoliinae Kuroda, Habe & Oyama, 1971 † Tychobraheidae Horný, 1992 † Velainellidae Vasseur, 1880
2017 taxonomy Williams et al. (2008)Williams S. T., Karube S. & Ozawa T. (September 2008) "Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and Trochoidea redefined". Zoologica Scripta 37(5): 483-506. have made further refinements to the taxonomy of Trochoidea. The revised taxonomy as defined by Bouchet et al. (2017) resulted in the following families."Revised Classification, Nomenclator and Typification of Gastropod and Monoplacophoran Families" by Philippe Bouchet & Jean-Pierre Rocroi, Bernhard Hausdorf, Andrzej Kaim, Yasunori Kano, Alexander Nützel, Pavel Parkhaev, Michael Schrödl and Ellen E. Strong in Malacologia, 2017, 61(1–2): 1–526 The fossil families, tentatively included in this list, are based on Tracey et al. (1993)Tracey S., J.A. Todd & D.H. Erwin, 1993, Mollusca: Gastropoda. Pp. 131–167, in: M. J. Benton, ed., The Fossil Record, volume 2. chapman & hall, london. 845 pp. Angariidae Gray, 1857 † Anomphalidae Wenz, 1938 † Araeonematidae Nützel, 2012 Areneidae McLean, 2012 Calliostomatidae Thiele, 1924 (1847) Colloniidae Cossmann, 1917 Conradiidae Golikov & Starobogatov, 1987 † Elasmonematidae Knight, 1956 † Epulotrochidae Gründel, Keupp & Lang, 2017 † Eucochlidae Bandel, 2002 Liotiidae Gray, 1850 Margaritidae Thiele, 1924 †Metriomphalidae Gründel, Keupp & Lang, 2017 † Microdomatidae Wenz, 1938 †Nododelphinulidae Cox, 1960 Phasianellidae Swainson, 1840 † Proconulidae Cox, 1960 † Sclarotrardidae Gründel, Keupp & Lang, 2017 Skeneidae Clark W., 1851 Solariellidae Powell, 1951 Tegulidae Kuroda, Habe & Oyama, 1971 Trochidae Rafinesque, 1815 Turbinidae Rafinesque, 1815 † Tychobraheidae Horný, 1992 † Velainellidae Vasseur, 1880 Trochoidea (unassigned) Unassigned to a family: Margarella Thiele, 1893 – Margarella rosea belongs to Cantharidinae, but Margarella antarctica belongs to Calliostomatidae/Thysanodontinae as Carinastele antarctica.Williams S.T., Donald K.M., Spencer H.G. & Nakano T. (2010) Molecular systematics of the marine gastropod families Trochidae and Calliostomatidae (Mollusca: Superfamily Trochoidea). Molecular Phylogenetics and Evolution 54:783–809. Nomen dubium Ataphridae Cossmann, 1915 Families brought into synonymy Crosseolidae Hickman, 2013: synonym of Conradiidae Golikov & Starobogatov, 1987 Cyclostrematidae P. Fischer, 1865: synonym of Liotiidae Gray, 1850 Delphinulidae Stoliczka, 1868: synonym of Angariidae Gray, 1857 Gazidae Hickman & McLean, 1990: synonym of Margaritidae Thiele, 1924 Minoliinae Kuroda, Habe & Oyama, 1971: synonym of Solariellidae Powell, 1951 † Parataphrinae Calzada, 1989: synonym of † Proconulidae Cox, 1960 Stomatellidae Gray, 1840: synonym of Stomatellinae Gray, 1840 Stomatiidae Carpenter, 1861: synonym of Stomatellinae Gray, 1840 Tricoliidae Woodring, 1928: synonym of Tricoliinae Woodring, 1928 (rank change)
References
Hickman C. S. & McLean J. H. (1990). Systematic revision and suprageneric classification of trochacean gastropods. Science Series of Natural History Museum of Los Angeles County 35: 1-169 Hickman C.S. (1992). Reproduction and development of Trochacean gastropods. The Veliger. 35(4): 245-272
Suzanne T. Williams (2012), Advances in molecular systematics of the vetigastropod superfamily Trochoidea; Zoologica Scripta Volume 41, Issue 6, pages 571–595, November 2012