Saudi Gazelle (Gazella saudiya)  

The Saudi Gazelle, described in 1935, was native to the Arabian Peninsula, where it inhabited sandy acacia plains.

The species disappeared due to excessive hunting and was declared extinct in the wild in 1980 when it very probably was already globally extinct, because all captive individuals were subsequently shown to represent hybrids or different species. 

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edited: 18.10.2020