The largest mass extinction event in the history of the earth occurred at the end of the period. a. ordovician b. devonian c. permian d. cambrian

Answer is C. The Permian saw the enhancement of the early amniotes into the genealogical gatherings of the well evolved creatures, turtles, lepidosaurs, and archosaurs. The world at the time was ruled by two landmasses known as Pangaea and Siberia, encompassed by a worldwide sea called Panthalassa.

The largest mass extinction event in the history of the Earth occurred at the end of the Permian period. This time period spans 46.7 million years, in this extintion nearly 90% of marine life and 70% of terrestrial beings died out. It took a lot of time to recover from this mess.