Mentor: Dr. Pedro Marenco
The end Permian mass extinction (~252mya) was the largest mass extinction in Earth's history. Marine invertebrates were drastically affected with ~80% of genera going extinct. Biotic recovery did not take place in earnest until ~5my later at the beginning of the Middle-Triassic (Anisian). Combining paleontological data (biostratigraphy, fossil abundance, diversity, presence/absence)and chemostratigraphic data (stable isotopes of S, C, and O) from the Prida Formation at Fossil Hill, Nevada we can better understand recovery patterns in correlation with changes in environment. Much research has been conducted on conodont and ammanoid biostratigraphy at Fossil Hill but we will be examining the correlation between changes in ocean geochemistry and the biotic recovery. We predict that we will find a link between the return of favorable environmental conditions and increasing faunal diversity.