Assertion: marsupial | /r/CapableOf | dominate australian ecosystem
Facets:
value: since
type: TEMPORAL
Source sentences:
text: In Australia, terrestrial placental mammals disappeared early in the Cenozoic (their most recent known fossils being 55 million-year-old teeth resembling those of condylarths) for reasons that are not clear, allowing marsupials to dominate the Australian ecosystem.
text: According to the article, "In Australia, marsupials displaced any placental mammals entirely, and have since dominated the Australian ecosystem.