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The IUCN also lists five animal subspecies as extinct in the wild. This is a complete list of wild animal species and subspecies listed as extinct by the IUCN. Some of these species, such as Aylacostoma guaraniticum, Aylacostoma stigmaticum, and Partula faba have since become entirely extinct.
The species recovery score is a 0%–100% scale, with 0% being the species is extinct or extinct in the wild and 100% being fully recovered. In addition, the Green Status also classifies previous and future conservation impacts with the Green Scores of Conservation Dependency, Conservation Gain, Conservation Legacy, and Recovery Potential.
List of Saint Helena, Ascension and Tristan da Cunha animals extinct in the Holocene. List of Asian animals extinct in the Holocene. List of European species extinct in the Holocene. List of extinct animals of the British Isles. List of North American animals extinct in the Holocene. List of Antillian and Bermudan animals extinct in the Holocene.
A species is declared extinct after exhaustive surveys of all potential habitats eliminate all reasonable doubt that the last individual of a species, whether in the wild or in captivity, has died. Recently extinct species are defined by the IUCN as becoming extinct after 1500 CE .
Version 2014.2 of the IUCN Red List of Threatened Species identified 77 (40 animal, 37 plant) extinct in the wild species, subspecies and varieties, stocks and subpopulations. For IUCN lists of extinct in the wild species by kingdom, see:
Reptile species (IUCN, 2016-2) 5130 extant species have been evaluated; 4220 of those are fully assessed; 3229 are not threatened at present; 989 to 1899 are threatened; 26 to 43 are extinct or extinct in the wild: 24 extinct (EX) species; 2 extinct in the wild (EW) 17 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)]
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 65 extinct fish species, 87 possibly extinct fish species, and six extinct in the wild fish species. [1] [2] Cartilaginous fish
Amphibian species (IUCN, 2016-2) 6492 extant species have been evaluated; 4925 of those are fully assessed; 2860 are not threatened at present; 2063 to 3630 are threatened; 35 to 148 are extinct or extinct in the wild: 33 extinct (EX) species; 2 extinct in the wild (EW) 113 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)]
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