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 tests dated the Manis site at 13,800 years old. Since the 1950s, archaeologists have believed the Clovis people were the first human inhabitants of North America and that they lived here 13,000 years ago. However the discovery of sites pre-dating Clovis, such as Monte Verde in Chile and Meadowcroft Rockshelter in Pennsylvania, have been challenging this presumption at least since the 1990s. The Manis Mastodon Site is 800 years older than the Clovis people. This site, among others, is helping to change the long-held beliefs of many archaeologists about the earliest human inhabitants of North America. The Manis Mastodon Site