Chapter 28, Problem 11TYU

Summary Introduction

To analyze:

The end-Permian species (underwent devastating extension) is compared to a graduation class with 1800 students, to determine the number of students that would exist by the end of the graduation if this class represents the Permian extinction era.

Introduction:

The term Permian denotes a geologic period, which ranged over 47 million years from the Carboniferous end. During Permian, early amniotes diversified into turtles, mammals, archosaurs, and lepidosaurs. The Permian period ended during the Permian-Triassic event, with the extinction of many terrestrial and marine species.