With The early 20th century, the taxonomy of extinct elephants was sophisticated. In 1942, American palaeontologist Henry Fairfield Osborn's posthumous monograph within the Proboscidea was published, wherein he used numerous taxon names that had Formerly been proposed for mammoth species, like changing Mammuthus with Mammonteus, as he considered the former https://www.youtube.com/channel/UCCoZfLHRsYsRsVHqS-CSAWA