The fossil record shows that a major die-off in both land and sea species occurred in the time boundary between the _________________.

Question

Quizplus · Accepted Answer

The time boundary referred to in the question is known as the K-Pg boundary, which marks the end of the Cretaceous period (when dinosaurs went extinct) and the beginning of the Paleogene period. This event, also known as the Cretaceous-Paleogene extinction event, led to the extinction of about 75% of all plant and animal species on Earth, including most dinosaurs. The other answer choices are not associated with this particular extinction event.

The Fossil Record Shows That a Major Die-Off in Both