''Cryoturris nexilis'' is an extinct species of

sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...

, a marine

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk in the family Mangeliidae.Fossilworks: ''Kurtziella (Cryoturris) nexilis''
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Description

The length of the shell attains 5.3 mm, its diameter 1.9 mm.

Distribution

This extinct marine species has been found in Pliocene strata of the

Bowden Formation The Bowden Formation is a geologic formation in Jamaica. It preserves fossils dating back to the Neogene period. See also * List of fossiliferous stratigraphic units in Jamaica The Paleobiology Database lists no known fossiliferous stratigrap ...

, Jamaica; age range: 3.6 to 2.588 Ma.

References

* W. P. Woodring. 1928. ''Miocene Molluscs from Bowden, Jamaica. Part 2: Gastropods and discussion of results .'' Contributions to the Geology and Palaeontology of the West Indies * A. J. W. Hendy, D. P. Buick, K. V. Bulinski, C. A. Ferguson, and A. I. Miller. 2008. Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions. {{DEFAULTSORT:Cryoturris Nexilis

nexilis Uteriporinae is a subfamily of Maricola triclads. Genera List of known genera:*Tyler S, Schilling S, Hooge M, and Bush LF (comp.) (2006-2012) Turbellarian taxonomic database. Version 1.Database *''Allogenus'' *'' Camerata'' *'' Dinizia'' *'' ...