list of extinct species

List Categories and Criteria of Endangered Species）。 物種分類為9個級別，根據數目下降速度、物種總數、地理分佈、群族分散程度等準則分類。詳見保護現狀的描述。 绝灭（EX, Extinct） 野外绝灭（EW, Extinct in the

1,900,983 species (incl. 63,418 extinct species) 2018 Annual Checklist （页面存档备份，存于互联网档案馆）, 1,803,488 species (incl. 59,284 extinct species) 2017 Annual

Division of Endangered Species, U.S. Fish and Wildlife Service. Extinct Species List. U.S. Fish and Wildlife Service. [12 December 2004]. （原始内容存档于2004-12-15）

Danielle; Blum, Michael J. Resurrecting an extinct species: Archival DNA, taxonomy, and conservation of the Vegas Valley leopard frog. Conservation Genetics

Archer, Hand & Beck, 2023 Distoechurus pennatus. The IUCN Red List of Threatened Species 2008. [28 December 2008].  Prudence R. Fabian, Michael Archer