Mass Extinctions

Sat, 08 May 2021 01:48:11 +0000

Mass extinctions happened multiple times throughout Earth’s history. These events dramatically changed the biosphere and altered the course of evolution. Many of these seem to be linked to CO2 degassing, global warming, and other major environmental perturbations. I have ongoing collaborations related to geochemical change across the End-Cretaceous extinction. I am also working with a team to use physiological modeling of dinosaurs and other tetrapods to determine environmental change across the End Triassic Extinction.

Cephalopod biology

Sat, 08 May 2021 01:24:04 +0000

I use geochemistry to probe the ecology of modern and extinct cephalopods. This group is an important component modern and ancient marine ecosystems. Ammonoids are a particularly important group in the fossil record and are used to construct the geological timescale and study evolution.

I am interested in using new geochemical tools to investigate questions related to behavior, lifespan, and metabolism at a variety of spatial and temporal scales.

Paleontology | Geochemistry of shells and oceans

Mass Extinctions

Cephalopod biology