Dusicyon sylvestris; Print; Dusicyon is an extinct genus of South American canids. The type species is Dusicyon australis; the Falkland Islands wolf. In 1914; Oldfield Thomas established this genus; in which he included the culpeo and other South American foxes. These other canids were removed to Lycalopex by Langguth in 1975. Dusicyon avus; widely distributed in the late Pleistocene from Uruguay through Buenos Aires Province to southernmost Chile; is the closest known relative of the Falkland Islands wolf; the two lineages split only about 16; 000 years ago. It died out in the late Holocene; about 2; 980 years ago on the island of Tierra del Fuego and almost 1; 700 years ago in the continent.; 1833-1866