Because of the early twentieth century, the taxonomy of extinct elephants was elaborate. In 1942, American palaeontologist Henry Fairfield Osborn's posthumous monograph within the Proboscidea was posted, wherein he applied numerous taxon names that had previously been proposed for mammoth species, which include replacing Mammuthus with Mammonteus, as he thought https://www.youtube.com/channel/UCCoZfLHRsYsRsVHqS-CSAWA