Vertebrate extinctions since 1600AD

An indication of the number and former occurrence of recently extinct mammal, bird and freshwater fish species. Each of these three vertebrate classes is represented by a differently coloured symbol, sized according to number of extinct species. Only extinctions that are fully resolved according to firm CREO criteria are covered. The blue circle symbol represents the large number of fishes in Lake Victoria that have been considered to be extinct (or critically depleted) but which lack adequate documentation. In many cases, including most islands and lakes, the position of the symbol indicates last record or core of former range. Where several species ranged more widely over a country, the symbol is positioned at the centre of that country. Based on several sources.