Genus Thylacinus is an extinct genus of marsupial mammals that lived in Australia during the Pliocene and Pleistocene epochs. This genus is commonly known as the thylacine or Tasmanian tiger due to its resemblance to a large dog or wolf. However, there are several other synonyms for this genus, including Thylacinidae, Thylacynus, and Thylacinus cynocephalus. The thylacinine family, of which the thylacine is the last remaining member, is believed to have evolved from carnivorous marsupials that roamed the ancient supercontinent of Gondwana. Despite being classified as extinct, the thylacine's legacy lives on in art, literature, and popular culture, making it an iconic symbol of Australia's natural history.