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Critical (Possibly Extinct) CR (PE), a semi-official category introduced by BirdLife International and likely to be adopted by other authorities including the IUCN in the near future. The weight of evidence points against the continuing existence of the taxon, but final surveys are still pending.
113 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)] As of January 2022, the International Union ... El Cóndor glass frog (Centrolene condor)
206 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)] As of July 2016, the International Union for Conservation of Nature (IUCN) lists 395 ...
The International Union for Conservation of Nature (IUCN) lists 35 extinct species, 146 possibly extinct species, two extinct in the wild species, and one possibly extinct in the wild species of amphibians. [1] [2]
206 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)] As of July 2016, the International Union for Conservation of Nature (IUCN) lists 5278 ...
206 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)] Vulnerable (VU) species are considered to be facing a high risk of extinction in the wild ...
87 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 ...
86 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 81 ...