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
Manis Mastodon Site remains the oldest archaeological site on the Olympic Peninsula in Washington State and one of the oldest in North America. In November 2011, Shirley Manis, daughter of discoverer Emanuel Manis, authored the first and only children's picture book about the Manis Mastodon Site, which includes the most recent research analysis. Manis Mastodon Site The Manis Mastodon site is a archaeological site on the Olympic Peninsula near Sequim, Washington, United States. During the dig, the remains of an American mastodon was recovered which had a 13,800 year old projectile made of the bone from a different mastodon embedded in its rib.