''Elmira'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of prehistoric

snail A snail is a shelled gastropod. The name is most often applied to land snails, terrestrial molluscs, terrestrial pulmonate gastropod molluscs. However, the common name ''snail'' is also used for most of the members of the molluscan class Gas ...

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 ...

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

Taxonomy

Cooke placed the ''Elmira'' within the family

Viviparidae Summary Viviparidae, commonly called river snails or mystery snails, are a family of freshwater snails with gills and a protective lid (operculum). Recent studies show that their family tree is messier than expected, with genetic evidence sugg ...

, but according to the shell features it can placed within Littorinidae, Capulidae or clade Neomphalina.

Species

Species within the genus ''Elmira'' include: *'' Elmira cornuatietis'' Cooke, 1919 *'' Elmira shimantoensis'' Kiel & Nobuhara ''in'' Nobuhara ''et al.'', 2016 The width of the shell of ''Elmira cornuatietis'' is more than 40 mm.Kiel S. & Peckmann J. (2007). "Chemosymbiotic bivalves and stable carbon isotopes indicate hydrocarbon seepage at four unusual Cenozoic fossil localities". ''Lethaia'' 40(4): 345-357. . The shape of the shell is low turbiniform. The

sculpture Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts. Durable sc ...

is crossed lamellar. It has no pores in the shell.

References

Prehistoric gastropod genera {{Paleo-gastropod-stub