Tag Archives: K-Pg boundary

K-Pg Extinction Event: Theories

The K-Pg boundary extinction event has several distinct characteristics that can be used to differentiate between possible causes. Supernova Cosmic radiation from a nearby supernova could be responsible for the mass extinctions and the iridium layer. However, the boundary should … Continue reading

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K-Pg Extinction Event: Boundary Characteristics

The end of the Cretaceous period and the start of the Paleogene period 65.5 million years ago is marked by a global extinction event at the K-Pg boundary. The Paleogene was previously part of the Tertiary before the term was … Continue reading

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