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The Cretaceous-Paleogene mass extinction event, commonly referred to as the K-Pg extinction event, occurred just before the rapid increase in speciation among mammalian species.
The Cretaceous-Paleogene Mass Extinction Event and Its Impact on Mammalian Speciation
The Cretaceous-Paleogene (K-Pg) mass extinction event, which occurred 66 million years ago, was a global event that wiped out the majority of life on Earth. This event is most famously known for the extinction of the dinosaurs, but it also had major impacts on the evolutionary history of mammals.
Before the K-Pg extinction event, there were few mammalian species, but after the event there was a rapid increase in the number of mammalian species. This increase in speciation is thought to be due to the removal of the large dinosaurs, which opened up numerous niches for the smaller mammals to occupy. These new niches allowed for the evolution of new species and the increased diversity of mammals that we see today.
Learn more about Extinction event: https://brainly.com/question/13830506
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