Elmira (gastropod)

Elmira; Temporal range: Cretaceous-Eocene[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	unclear
Superfamily:	unclear
Family:	unclear[2][3]
Genus:	Elmira; Cooke, 1919

Elmira is a genus of prehistoric snails, gastropod molluscs.

Taxonomy

Cooke placed the Elmira within the family Viviparidae, but according to the shell features it can placed within Littorinidae, Capulidae or clade Neomphalina.[3]

Species

Species within the genus Elmira include:

Elmira cornuatietis Cooke, 1919[1]
Elmira shimantoensis Kiel & Nobuhara in Nobuhara et al., 2016[4]

The width of the shell of Elmira cornuatietis is more than 40 mm.[3] The shape of the shell is low turbiniform. The sculpture is crossed lamellar.[3] It has no pores in the shell.[3]

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References

Kiel S. & Hansen B. T. (2015). "Cenozoic Methane-Seep Faunas of the Caribbean Region". PLoS ONE 10(10): e0140788. doi:10.1371/journal.pone.0140788.
Chen C., Linse K., Roterman C. N., Copley J. T. & Rogers A. D. (2015). "A new genus of large hydrothermal vent‐endemic gastropod (Neomphalina: Peltospiridae)". Zoological Journal of the Linnean Society 175(2), 319-335. doi:10.1111/zoj.12279.
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. doi:10.1111/j.1502-3931.2007.00033.x.
Takami Nobuhara; Daigaku Onda; Takuya Sato; Hidemi Aosawa; Toyoho Ishimura; Akira Ijiri; Urumu Tsunogai; Naoki Kikuchi; Yasuo Kondo; Steffen Kiel (2016). "Mass occurrence of the enigmatic gastropod Elmira in the Late Cretaceous Sada Limestone seep deposit in southwestern Shikoku, Japan". PalZ (Paläontologische Zeitschrift). 90 (4): 701–722. doi:10.1007/s12542-016-0326-4.

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[Kiel_2015-1] Kiel S. & Hansen B. T. (2015). "Cenozoic Methane-Seep Faunas of the Caribbean Region". PLoS ONE 10(10): e0140788. doi:10.1371/journal.pone.0140788.

[Chen_2015-2] Chen C., Linse K., Roterman C. N., Copley J. T. & Rogers A. D. (2015). "A new genus of large hydrothermal vent‐endemic gastropod (Neomphalina: Peltospiridae)". Zoological Journal of the Linnean Society 175(2), 319-335. doi:10.1111/zoj.12279.

[Kiel_2007-3] 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. doi:10.1111/j.1502-3931.2007.00033.x.

[4] Takami Nobuhara; Daigaku Onda; Takuya Sato; Hidemi Aosawa; Toyoho Ishimura; Akira Ijiri; Urumu Tsunogai; Naoki Kikuchi; Yasuo Kondo; Steffen Kiel (2016). "Mass occurrence of the enigmatic gastropod Elmira in the Late Cretaceous Sada Limestone seep deposit in southwestern Shikoku, Japan". PalZ (Paläontologische Zeitschrift). 90 (4): 701–722. doi:10.1007/s12542-016-0326-4.