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
Cerutti Mastodon site 300 other bone fragments. The remains of dire wolf, horse, camel, mammoth and ground sloth were also discovered at the site. Five cobbles displaying use-wear and impact marks were also recovered from the site in Bed E. The research team found cobbles and broken mastodon bones lying together at the site. Uranium-thorium dating of bones from the site estimates a dating of around 130,700 (±9,400) years ago for the Cerutti Mastodon site. The research team claims that the cobbles found at the site were used as hammerstones and anvils. The research team also claims that the mastodon bones show signs