†Oriostomatoidea is an

extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...

superfamily of fossil

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

s, marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

s in the clade

Neritimorpha Neritimorpha is a clade of gastropod molluscs that contains around 2,000 extant species of sea snails, limpets, freshwater snails, land snails and slugs. This clade used to be known as the superorder Neritopsina. Etymology The clade’s name, N ...

Taxonomy

Families within the superfamily Oriostomatoidea are as follows: * † Family

Oriostomatidae ''Oriostomatidae'' is an extinct taxonomic family of fossil sea snails, marine gastropod mollusks in the clade Neritimorpha Neritimorpha is a clade of gastropod molluscs that contains around 2,000 extant species of sea snails, limpets, freshw ...

* † Family Tubinidae

References

* Koken, E. (1896). ''Die Gastropoden der Trias um Hallstadt.'' Jahrbuch der Kaiserlich-Königlichen Geologischen Reichsanstalt. 46(1): 37−126 * W. Wenz. 1938. Handbuch der Paläozoologie; Gastropoda. Handbuch der Paläozoologie Prehistoric gastropods Gastropod superfamilies {{Neritimorpha-stub