Assertion: therian mammal | /r/CapableOf | undergo exponential increase
Facets:
value: in body size
type: OTHER
Source sentences:
text: Therian mammals took over the medium- to large-sized ecological niches in the Cenozoic, after the Cretaceous–Paleogene extinction event approximately 66 million years ago emptied ecological space once filled by non-avian dinosaurs and other groups of reptiles, as well as various other mammal groups, and underwent an exponential increase in body size (megafauna).