eia o texto a seguir para responder a questão. Mass extinctions are insanely catastrophic—but important—events that punctuate the history of life o...

eia o texto a seguir para responder a questão. Mass extinctions are insanely catastrophic—but important—events that punctuate the history of life on Earth. The Jurassic/Cretaceous boundary was originally thought of to represent a mass extinction but has subsequently been “downgraded” to a minor extinction event based on new discoveries. However, compared to other important stratigraphic boundaries, like the end-Triassic or the end-Cretaceous, the Jurassic/Cretaceous boundary remains really poorly understood. Quantos advérbios aparecem no texto: