See text Pleurotomarioidea is a superfamily of small to large marine gastropods included in the order Pleurotomariida of the subclass Vetigastropoda.

Forming the first evidence of crown-group gastropods when they appeared in the Upper Cambrian, the fossil record of the Pleurotomarioideans has no substantial gaps until today.

[3] Living representatives of the group were first discovered in the mid-19th century, and their unusual mix of primitive and derived characters perplexed biologists.

The researchers originally responded by re-working their ideas of how the gastropod lineage evolved, but with the introduction of cladistics, attempts are currently underway to fit them into a molluscan phylogeny.

P. J. Wagner 2008[6] includes the superfamily Pleurotomarioidea, (ex Pleurotomariacea) in the suborder Pleurotomariina and superorder Vetigastropoda.