In This Issue [This Week in PNAS]

EVOLUTION Fairydale, Bethulie, in South Africa’s Karoo Basin. End-Permian extinction patterns in South Africa The greatest mass extinction on Earth occurred at the end of the Permian Period, approximately 252 million years ago. However, there are few quantitative investigations of the extinction’s impact on land animals. Pia Viglietti et al....
Source: Proceedings of the National Academy of Sciences - Category: Science Tags: In This Issue This Week in PNAS Source Type: research