mass extinction event (English, noun)
expansion: mass extinction event (plural mass extinction events)
Senses:
topics: geography
geology
natural-sciences
qualifier: evolutionary theory
glosses: One of five historical events in which the Earth experienced a loss of ∼75% of all species over a geological interval of less than 3 million years, the most recent being the Cretaceous–Paleogene extinction event 66 million years ago.
Forms:
form: mass extinction events
tags: plural