Research

Brief Research Statement

My broader research plan aims to investigate the relationship between mammalian adaptation and changes to the environment. Before I can test for changes in paleoecology, I need to be sure that the basic taxonomy and systematics are correct, that is, we need to know how many paleo-species are present in a community before any additional studies are conducted. It's also necessary to conduct field work to make sure the largest number of species are sampled. Utilizing previous collected specimens at museums is also necessary for amassing proper sample sizes. 

I feel that it is important to involve students in my research, and I have projects that can be completed by both undergraduate and graduate students.

Ecosystem Rebound After Volcanic Eruptions

I am investigating ecosystem changes following volcanic eruptions in the fossil record. Specifically I am focusing on the Turtle Cove Member of the John Day Formation. I am to better understand how mammalian communities recover after super-volcanic eruptions which can only be viewed in the fossil record at this time. I am also interested in looking into the impacts of modern eruptions on modern mammalian communities.

Systematics

A basic understanding of systematics is essential for phylogenetic and paleoecological studies. I am currently working on the systemetics of the Oligocene horse genus Miohippus in Oregon.

Phylogeny of the Equidae

We intend to create a supertree of all fossil and modern horses. Using this tree we plan to phylogenetically test measures of enamel complexity. 

Occlusal Enamel Complexity in Ungulates

This research was published in Palaeo3 in 2013, PLoS One in 2014, and the Journal of Mammalian Evolution in 2015. This was the first study to quantify enamel complexity on the chewing surface of ungulate teeth. We established the Occlusal Enamel Index (OEI). This metric has great potential for application to several other taxa. I have an interest in exploring how OEI differs between taxa and it's utility in paleoecology.

Fossil Preparation and Conservation

Through work with the University of Nebraska State Museum and Badlands National Park (photo above) and course work at the South Dakota School of Mines and Technology I have learned a great deal about the preparation and conservation of vertebrate fossils.