Abyssochrysoidea

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

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

Families
Families within the superfamily Abyssochryoidea include:
 * Abyssochrysidae Tomlin, 1927
 * Provannidae Warén & Ponder, 1991
 * † Hokkaidoconchidae Kaim, R. G. Jenkins & Warén, 2008
 * unassigned : one genus Rubyspira Johnson, Warén, Lee, Kano, Kaim, Davis, Strong & Vrijenhoek, 2010

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.