| Abyssochrysoidea | |
|---|---|
| Two preserved specimens of Alviniconcha hessleri, family Provannidae | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Caenogastropoda |
| Superfamily: | Abyssochrysoidea Tomlin, 1927 |
Abyssochrysoidea is a superfamily of deep water sea snails, marine gastropod mollusks in the clade Caenogastropoda.
These 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 was Provannidae placed in the superfamily Abyssochrysoidea by Kaim et al. (2008)[1] and then also Abyssochrysidae was moved to Abyssochrysoidea.[2]