Yangtze River Dolphin, Lipotes vexillifer, 13 December 2006 (functionally extinct) Western Black Rhinoceros, Diceros bicornis longipes, 8 June 2006 Po’o-uli Melamprosops phaeosoma, 28 November 2004 Miss Waldron’s Red Colobus Monkey, Procolobus badius waldronae, 2000-2001 Pyrenean Ibex, Capra pyrenaica pyrenaica, 6 January 2000 Atitlan Grebe, Podilymbus gigas, 1989 Golden Toad, Bufo periglenes, 1989 Arcuate Pearly Mussel, [...]