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Seguenzioidea

Superfamily of gastropods From Wikipedia, the free encyclopedia

Seguenzioidea
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Seguenzioidea is a superfamily of sea snails, marine gastropod mollusks in the clade Vetigastropoda.[2][3]

Quick Facts Scientific classification, Families ...
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Description

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Three Seguenziid gastropods

The distinctive characteristics of the shells of the Seguenzioidea are:

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Taxonomy

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Seguenzioidea was placed in part or in whole previously to 1979 either in the Archaeogastropoda near the superfamily Trochoidea or in the Caenogastropoda near the superfamily Stromboidea.[5] In 1987 Salvini-Plawén and Haszprunar changed its status to the suborder Seguenziina, based on the radular formula that they considered to be intermediate between "rhipidoglossate" and "taenioglossate".[6] At about the same time in 1987 Goryachev elevated the superfamily to ordinal status Seguenziiformes in the superorder Littorinimorpha, based on the taenioglossal radula.[7]

2005 taxonomy

2005 taxonomy according to Bouchet & Rocroi, 2005. (Families that are exclusively fossil are indicated with a dagger †.)

Superfamily Seguenzioidea
Family Seguenziidae
Family Chilodontaidae
† Family Eucyclidae
† Family Laubellidae

2007–2009 taxonomy

Kano et al. (2009)[8] elevated the subfamily Calliotropinae to the family level as the Calliotropidae, and the subfamily Cataeginae to family level as the Cataegidae.[8]

The superfamily Seguenzioidea consists of six families:[9]

Unassigned to a family
Unassigned genera brought into synonymy
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References

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