Assertion: american bison's ancestor | /r/CapableOf | occur 7,000 bc
Facets:
value: to 5,400 bc
type: TEMPORAL
Source sentences:
text: A possible ancestor, the extinct steppe bison, B. priscus, is known from across Eurasia and North America, last occurring 7,000 BC to 5,400 BC, and is depicted in the Cave of Altamira and Lascaux.