Aylacostoma guaraniticum

Aylacostoma guaraniticum is a species of freshwater snail, an aquatic gastropod mollusc in the family Thiaridae. This species disappeared after the building of the Yacyretá Dam on the Paraná River, in between Argentina and Paraguay.[1] Although listed as extinct in the wild by the IUCN, no captive population survives meaning that it now is entirely extinct.[2]

Aylacostoma guaraniticum
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Sorbeoconcha
Superfamily:
Cerithioidea
Family:
Thiaridae
Genus:
Aylacostoma
Species:
A. guaraniticum
Binomial name
Aylacostoma guaraniticum
Hylton-Scot, 1953

References
  1. Mansur, M.C.D.; et al. (Mollusc Specialist Group) (2000). "Aylacostoma guaraniticum". IUCN Red List of Threatened Species. 2000: e.T29611A9504659. doi:10.2305/IUCN.UK.2000.RLTS.T29611A9504659.en. Retrieved 16 November 2021.
  2. Vogler (2013). The Radula of the Extinct Freshwater Snail Aylacostoma stigmaticum (Caenofastropoda: Thiaridae) from Argentina and Paraguay. Malacologia 56 (1-2): 329-332.


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