Assertion: american mastodon | /r/CapableOf | roam north american wilderness
Facets:
value: until roughly 10,000 years bce
type: TEMPORAL
Source sentences:
text: The Woolly Mammoth (Mammuthus primigenius) and the American Mastodon (Mammut americanum) both roamed the North American wilderness until roughly 10,000 years BCE (although a few remarkable “dwarf mammoths” managed to hold out for a good while longer).