Nystia

Nystia is an extinct genus of fossil freshwater snails, aquatic gastropod molluscs in the family Truncatellidae.[1][3]

Nystia
Temporal range: Eocene[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily:
Rissooidea
Family:
Truncatellidae
Genus:
Nystia

Tournouer, 1869[2]

The genus Nystia was previously classified within the Stenothyridae or the Micromelaniidae.[1] It is currently classified within the Truncatellidae according to Kadolsky (1988).[1][3]

Distribution

The distribution of the genus Nystia includes France[1] and the Czech Republic.

Species

Species in the genus Nystia include:

  • Nystia duchasteli (Nyst, 1836) - synonym: Paludina duchasteli Nyst, 1836, type species, from Eocene of France[1]
  • Nystia lenoiri[1]
  • Nystia rubeschi[4]
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References
  1. Kabat A. R. & Hershler R. (1993). "The prosobranch snail family Hydrobiidae (Gastropoda: Rissooidea): review of classification and supraspecific taxa". Smithsonian Contributions to Zoology 547: 1-94. PDF.
  2. Tournouer M. R. (1869). "Description du nouveau genre Pyrgidium et de deux espèces fosilles des terrains d'eau douce du département de la Côte-d'Or". Journal de Conchyliologie 17: 86-95. 91.
  3. Kadolsky D. (1988). "Mollusken aus dem Oligozän von Sieblos a.d. Wasserkuppe/Rhön". Beitrage zur Naturkunde in Osthessen, Fulda, 24: 99-129. pages 103-105.
  4. (in Czech) PDF. image on page 57.

Further reading


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