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Research Overview

Research Overview

I use a variety of approaches to study evolution and adaptation in extinct mammals, particularly those of South America. I frequently draw on information from living mammals from throughout the world to determine how these extinct species lived and interacted with one another. Much of this is research is collaborative and involves colleagues and/or students. […]

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Fieldwork (Fossils)

Fieldwork (Fossils)

My fieldwork mainly aims to increase geographic and temporal (time interval) sampling within South America. Most terrestrial mammal fossils from South America come from the southern part of the continent (particularly Argentina). Therefore, my colleagues and I have focused our efforts on other areas, such as Bolivia, Chile, and Peru. Some of these localities have […]

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Systematics

Systematics

I specialize in notoungulate systematics but have published studies on a variety of other South American mammals. Representative publications on various groups are summarized below with links to their full citations. Notoungulates: Much of my research has focused typothere notoungulates, which include interatheres, archaeohyracids, mesotheres, and hegetotheres. Many of these papers have described new species […]

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Paleobiology

Paleobiology

Understanding how extinct mammals lived is what attracted me to the field of paleontology in the first place. Living mammals encompass an amazing diversity of lifestyles and adaptations that are even greater when extinct species are included. Paleobiological studies aim to reconstruct the characteristics and habits of these species. This can be particularly challenging for […]

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Macroecology

Macroecology

Macroecology means different things to different people. For me, it encompasses¬† more synthetic studies that try to answer questions of broad interest in paleontology. Such studies frequently raise as many questions as they answer, but continue to refine our understanding of past communities. Because South America was effectively an island for much of the past […]

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