Viviparoidea is a
taxonomic superfamily of
freshwater snails,
aquatic gastropod mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...
s within the informal group
Architaenioglossa, which belongs to the
clade Caenogastropoda.
The following two families have been recognized in
the taxonomy of Bouchet & Rocroi (2005):
* Family
Viviparidae
Viviparidae, sometimes known as the river snails or mystery snails, are a family of large operculate freshwater snails, aquatic gastropod mollusks.
This family is classified in the informal group Architaenioglossa according to the taxonomy ...
* † Family
Pliopholygidae
Pliopholygidae is an extinct family (biology), family of operculum (gastropod), operculate freshwater snails, Aquatic animal, aquatic gastropod mollusks in the informal group Architaenioglossa.
References
The Taxonomicon
Prehistoric gas ...
References
Architaenioglossa
{{Caenogastropoda-stub