Mastodon have been no reports of currently recognized "Mammut" species outside of North America according to Paleobiology database (which does not recognize "M. borsoni"). However, the status of "Mammut" or "Zygolophodon borsoni" in the literature appears equivocal. "Mammut" is a genus of the extinct family Mammutidae, related to the proboscidean family Elephantidae (mammoths and elephants), from which it originally diverged approximately 27 million years ago. The following cladogram shows the placement of the American mastodon among other proboscideans, based on hyoid characteristics: Over the years, several fossils from localities in North America, Africa and Asia have been attributed to "Mammut", but
Mastodon (band) of the more notable New Wave of American Heavy Metal acts, a genre spawned in the mid-'90s" and says that "Mastodon's innovative, lyrically astute blend of progressive metal, grindcore, and hardcore helped position the band as one of the preeminent metal acts of the early 21st century." Bassist Troy Sanders stated about their musical style: Scott Kelly of Neurosis has appeared to perform guest vocals on a track on every Mastodon album excluding "Remission". Mastodon's musical style has evolved much from their earliest pre-"Remission" releases to "The Hunter". Their early work is significantly heavier and more abrasive than their later