Kristin Bergmann

Kristin Bergmann grew up in Maryland and the United Kingdom. She attended Carleton College in Northfield, Minnesota where she majored in Geology with an Environmental and Technological Studies Concentration. There she fell in love with field work spending two summers researching the hydrologic changes associated with sagebrush expansion in the southern Sierra Nevada. Prior to graduate school, Kristin worked for the Interstate Commission on the Potomac River Basin and then taught middle school science at the Pennington School in New Jersey.

Kristin pursued her doctorate at Caltech in Pasadena, California with John Grotzinger, John Eiler and Woody Fischer using field and lab work to study the environmental conditions surrounding animal evolution in the Ediacaran, Cambrian and Ordovician. After graduating, she joined the Harvard Society of Fellows as a junior fellow and worked with Andy Knoll on early eukaryotic evolution. She joined the Department of Earth, Atmospheric and Planetary Sciences in the summer of 2015.


Adam Jost

Adam Jost is currently a Research Scientist working in the Bergmann Lab on the geochemistry of Cryogenian-age carbonate rocks from Svalbard. His work to date has focused on understanding ocean acidification and anoxia during the end-Guadalupian and end-Triassic extinctions using carbon, calcium, and uranium isotopes preserved in carbonate rocks from across the globe.

Athena Eyster

Athena Eyster is a Crosby Postdoctoral Fellow. Broadly, her research focuses on using field work, paleomagnetism, geochemistry, and geochronology to understand tectonic forcings to the chemical, biological, and climatic conditions at crucial points in Earth history. Previous projects involved identifying block rotations during supercontinent Rodinia’s breakup, resolving inconsistencies in cryogenic ages with climatic and tectonic implications, and better calibrating the Tonian movements of North America. Her current work focuses on determining the tectonic setting for the Ironwood Iron Formation and Emperor Volcanics, understanding the enigmatic 1.88 Ga pulse of iron formation and characterizing the environments of associated fossils.


Marjorie Cantine

Marjorie Cantine is a graduate student. She uses the physical and chemical characteristics of ancient and modern sediments to understand Earth's changing surface. She's especially interested in understanding global environmental changes during the Ediacaran that could have influenced the evolution of early animals.

Sam Goldberg

Sam Goldberg is a graduate student using clumped isotope paleothermometry to constrain the climatic setting of early animal evolution to explore potential linkages between climate changes and the timing of evolutionary pulses during the Cambrian and Ordovician periods. He also studies the patterns of continental drainage systems and their response to tectonic, climatic, and other forcings with Taylor Perron.

Julia Wilcots

Julia Wilcots is a graduate student who works to understand the history of Earth’s climate. She is particularly interested in the global glaciations and large isotope excursions of the Neoproterozoic. Her work uses the rock record and numerical modeling to better constrain the mechanisms that drove the climate system into and out of these extreme states.

Noah Anderson

Noah Anderson is a graduate student focused on using conodont apatite as a target for clumped-isotope thermometry to better constrain the environmental conditions of Earth during periods of rapid biodiversification. He is also interested in understanding the dynamics of ooid precipitation and abrasion, focusing on the interplay between grain transport and ooid growth.


Fran Meyer

Fran Meyer is a new research assistant in the lab. Her honors thesis at UC Berkeley focused on improving constraints on the timing and tempo of cooling leading up to end Ordovician glaciation. In the Bergmann lab, she is looking at Cretaceous lacustrine carbonates from the rifting of Pangea. She is broadly interested in what processes drive consequential climate events in Earth’s history


Roger Creel -- Former research assistant; now PhD student at Columbia University. // Clio Macrakis -- Former Undergraduate Research Opportunities Program (UROP) member. // Andrew Cummings -- Former UROP student; now a Master's student at MIT EAPS. // Zahra Essack -- Former second generals student. // Tyler Mackey -- Former post-doctoral fellow; now Assistant Professor at the University of New Mexico. // Jocelyn Reahl -- Former research assistant; now PhD student at the California Institute of Technology. // Nicole Haseley -- Former UROP student.