Trochoidea (superfamily)

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Temporal range: Ordovician–Recent[1]
Tegula pulligo.jpg
A live individual of Tegula pulligo
Scientific classification


See text

  • Trochacea
  • Turbinoidea Rafinesque, 1815

Trochoidea is a superfamily of small to very large vetigastropod sea snails with gills and an operculum.[2] 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.[3]

This taxon is not the same as a pulmonate land snail genus which is spelled the same way: Trochoidea (genus).


2005 taxonomy[edit]

This superfamily consisted of nine following families (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):

2008 taxonomy[edit]

According to Williams et al. (2008)[4] the taxonomy of Trochoidea looks this:

Unassigned to a family:

Families brought into synonymy
  • Cyclostrematidae P. Fischer, 1865: synonym of Liotiidae Gray, 1850
  • Gazidae Hickman & McLean, 1990: synonym of Margaritidae Thiele, 1924
  • Stomatellidae Gray, 1840: synonym of Stomatellinae Gray, 1840
  • Stomatiidae Carpenter, 1861: synonym of Stomatellinae Gray, 1840


  1. ^ Lindberg, edited by Winston F. Ponder, David R. (2008). Phylogeny and evolution of the Mollusca. Berkeley: University of California Press. ISBN 978-0-520-25092-5.
  2. ^ Gofas, S. (2013). Trochoidea. Accessed through: World Register of Marine Species at on 2013-06-29
  3. ^ Williams, S.T. (2012). Advances in molecular systematics of the vetigastropod superfamily Trochoidea. —Zoologica Scripta, 41, 571–595
  4. ^ Williams S. T., Karube S. & Ozawa T. (September 2008) "Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and Trochoidea redefined". Zoologica Scripta 37(5): 483-506. doi:10.1111/j.1463-6409.2008.00341.x
  5. ^ a b 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.