Notiomastodon Notiomastodon Notiomastodon is an extinct proboscidean genus of gomphothere (a distant relative to modern Elephants) endemic to South America from the Pleistocene to the Holocene living for approximately . Proboscideans in South America were first described by Georges Cuvier in 1806 but he failed to give them specific names beyond "Mastodon". It was Fischer in 1814 who gave the “"mastodonte des cordillères"” specimen the first specific name ""Mastotherium hyodon"". In 1824, Cuvier gave the specific names of ""Mastodon andium"" to the ""mastodonte des cordillères"" specimen, and ""Mastodon humboldtii"" to the ""mastodonte humboldien"". Due to the Principle of Priority, this means
Extinct language may be considered "extinct", especially in cases where they did not leave a corpus of literature or liturgy that remained in widespread use (see corpus language), as is the case with e.g. Old English or Old High German relative to their contemporary descendants, English and German. Some degree of misunderstanding can result from designating languages such as Old English and Old High German as extinct, or Latin dead, while ignoring their evolution as a language. This is expressed in the apparent paradox "Latin is a dead language, but Latin never died." A language such as Etruscan, for example, can be