Gomphotheres appear to have roamed North America as recently as 13,400 years ago
(Newser) -
North America's prehistoric Clovis people were known hunters of large mammoths and mastodons. But another elephant ancestor, the smaller gomphothere, may also have fallen prey to the ambitious hunter-gatherers. An archaeological dig begun in 2007 in northwestern Mexico now carbon dates that site—which has given up Clovis spear...