Abyssochrysoidea

Abyssochrysoidea
Two preserved specimens of Alviniconcha hessleri, family Provannidae
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda (unassigned)
Superfamily:	Abyssochrysoidea Tomlin, 1927

Abyssochrysoidea is a superfamily of deep-water sea snails, marine gastropod mollusks in the clade Caenogastropoda.

These marine snails are part of the fauna of the hydrothermal vents and other deep-water habitats.

Families within the superfamily Abyssochryoidea include:

These two families Provaniidae and Abyssochrysidae were previously placed in the "Zygopleuroid group" (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

Subsequently Provannidae was placed in the superfamily Abyssochrysoidea by Kaim et al. (2008) and then Abyssochrysidae was also moved to Abyssochrysoidea.

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