Assertion: dinosaur's ancestor | /r/CapableOf | live after the demise of the dinosaurs
Facets:
Source sentences:
text: What this means is that perissodactyls and artiodactyls (which counted among the mammalian megafauna of prehistoric times) both evolved from a common ancestor, which lived only a few million years after the demise of the dinosaurs at the end of the Cretaceous period, 65 million years ago.