(Photo © Gigi Cohen)

Dr. Stephen R. Meyers (he/him)
Vilas Distinguished Professor

Department of Geoscience

Ph.D., Northwestern University, 2003

Research Interests:
Paleoclimatology & Paleoceanography, Quantitative Stratigraphy, Sedimentary Geochemistry, Statistics & Data Analysis

VIEW Google Scholar Citations

The CycloCohort Program: An Early-Career Springboard for Inclusion, Diversity, Equity and Justice Focused Leadership in Geoscience & Astronomy. For information about this project please go HERE.

tadada Scientific Lab: For information about the tadada Scientific Lab project, please go HERE.

The 12th International Conference on Paleoceanography, Utrecht, September 2, 2016

Astrochron: A Computational Tool for Astrochronology

The latest public beta of Astrochron (version 1.1) is available for download from CRAN.

If you use Astrochron, please cite it as:
Meyers, S.R. (2014). Astrochron: An R Package for Astrochronology. https://cran.r-project.org/package=astrochron

For more information about Astrochron, please go HERE.


  • In uncertain times, you can lean on rocks … and The Rock
    See coverage at UW-Madison News and On Wisconsin
  • Antarctic ice-sheet sensitivity to obliquity forcing enhanced through ocean connections
    See news coverage of this Nature Geoscience paper by CNN, LiveScience, UW-Madison News or one of these publications.
  • Press release on "Beginnings"
    Professor takes on climate change by promoting science literacy through music, art, comics.
  • Proterozoic Milankovitch cycles and the history of the solar system
    See news coverage of this PNAS paper by The Guardian, Der Spiegel, The New Scientist, Le Figaro, or one of these publications.
  • What time is it? Unraveling the Earth's history
    Here's an article written for theWisconsin State Journal's special section on Fueling Discovery.
  • Theory of chaotic orbital variations confirmed by Cretaceous geological evidence
    See news coverage of this Nature paper by UW-Madison News, Popular Science, Nature, or one of these publications.

    Scientific American has also produced a "60-SECOND SCIENCE" podcast on the study.

    Important: If you are wondering whether this paper has anything to do with recent climate change, please see the news analysis website Climate Feedback for commentary.


  • Leveraging the Geologic Record to Constrain Solar System Evolution, Earth-Moon Dynamics, Paleoclimate Change and Geological Time, Heising-Simons Foundation. (link)

      “PROJECT 1: Earth-Moon Parameters and Solar System Fundamental Frequencies, Precambrian to Present” (PI Stephen Meyers, PI Linda Hinnov, PI Alberto Malinverno)(link)

      “PROJECT 6: The CycloCohort Program – An Early-Career Springboard for Inclusion, Diversity, Equity and Justice Focused Leadership in Geoscience & Astronomy” (PI Rocío Caballero-Gill, co-director Linda Hinnov, co-director Stephen Meyers, Consultant Carmen McCallum, Consultant Julie Libarkin)(link)

  • Collaborative Research: Improving the Late Cretaceous-Eocene geomagnetic polarity time scale by integrating the global magnetic anomaly record and astrochronology, Alberto Malinverno (Lead-PI), Stephen Meyers (Co-PI), NSF Marine Geology and Geophysics.(view abstract)
  • Collaborative Research: Anatomy of a Greenhouse World: The Early Eocene in the Green River Basin, Wyoming, Alan Carroll (Lead-PI), Stephen Meyers (Co-PI), et al., NSF Integrated Earth Systems.(view abstract)
  • Collaborative Proposal: EarthCube Integration: Geochronology Frontier at the Laboratory-Cyberinformatics Interface, Bradley Singer (Lead-PI), Stephen Meyers (Co-PI), et al., NSF EarthCube Program. (view abstract)
  • CAREER: Deciphering the Beat of a Timeless Rhythm - The Future of Astrochronology, Stephen Meyers (PI), NSF Sedimentary Geology and Paleobiology Program. (view abstract)
  • Collaborative Research: Evolution of the Climate Continuum - Late Paleogene to Present, Stephen Meyers (Lead-PI) and Linda Hinnov (Co-PI), NSF Paleo Perspectives on Climate Change (Lead program Marine Geology and Geophysics). (view abstract)
  • Collaborative Research: Integrating Radioisotopic and Astronomical Time Scales for the Cretaceous, Bradley Singer (Lead-PI), Stephen Meyers (Co-PI), and Bradley Sageman (Co-PI), NSF Sedimentary Geology and Paleobiology Program. (view abstract)


    Kristin Larkins (M.S., 2009):"Cyclic Sedimentation in the Mississippian Pride Shale: Quantitative Paleoenvironmental Analysis of Tidal Rhythmites Using X-Ray Fluorescence Scanning and Advanced Spectral Methods" (with L. Bartek)

    Bo He (M.S., 2010):"Evaluation of the Diagenetic Role of Iron as a Sulfide Buffer at Cape Lookout Bight, North Carolina (USA)" (with M. Alperin)

    Dylan Malynn (M.S., 2011):"Evaluation of Linkages Between Climate Change and Sedimentary Biogeochemistry in the Glacial/interglacial North Atlantic"

    Chao Ma (M.S., 2012):"Testing the Astronomical Time Scale for Oceanic Anoxic Event 2, and its Extension into Cenomanian Strata of the Western Interior Basin (U.S.A.)"

    Wesley Ingram (Ph.D., 2013):"Late Quaternary Depositional History, Sedimentary Geochemistry, and Organic Carbon Burial at Mississippi Canyon 118: A Deep-sea Site on the Northern Gulf of Mexico Slope Containing a Gas-Hydrate and Cold-Seep Field"

    Miao Du (M.S., 2013):"Comparing Nonlinear Climate Responses to Orbital-Insolation during the Early Miocene and Pleistocene: A Bicoherence Study"

    Andrew Walters (M.S., 2013):"Cyclostratigraphic Evaluation of Repetitive Sedimentary Microfacies from the Green River Formation, Utah" (with A. Carroll)

    Wasinee Aswasereelert (Ph.D., 2014):"Astronomical and Stochastic Influences on Lacustrine and Marine Environments during the Cenozoic: Case Studies from the Green River Formation (Eocene) and the World’s Ocean (Late Paleogene-Present)" (with A. Carroll)

    M'bark Baddouh (Ph.D., 2016):"Application of Strontium Isotopes in Paleoclimatology, Paleohydrology and Chemostratigraphy: The Eocene Green River Formation, Wyoming" (with A. Carroll)

    Lindsey Shanks (M.S., 2016):"On the Recurrence of Enigmatic Nannoplankton Blooms in the Subtropical South Atlantic during the Early Oligocene" (with C. Kelly)

    Chao Ma (Ph.D., 2016):"Centennial to Million-year Scale Climate Cycles in the Late Cretaceous Western Interior Seaway: Their Implications for Geochronology, Paleoceanography, and Celestial Mechanics"

    Harmony Liu (Ph.D., 2019): "Bridging the Model-data Gap in Paleoclimatology: Data Assimilation and Noise-removal for Marine Proxies" (with S. Marcott)

    Andrew Walters (Ph.D., 2020): "High-resolution, Multi-proxy Cyclostratigraphic Characterization of the Early Eocene Green River Formation, Wyoming and Utah, U.S.A." (with A. Carroll)

    Alexandra Villa (M.S., 2020): "Paleoceanography of the Cariaco Basin Using Clumped Isotope Geochemistry: Last Glacial Maximum to Present" (with S. Marcott and A. Tripati)

    Nicholas Sullivan (Ph.D. underway): On constrained optimization, astrochronology, and the history of the Southern Ocean/Antarctica.

    Ethan Parrish (Ph.D. underway): On source to sink dynamics in the Eocene Green River Formation, and the use of curriculum specific film in geoscience. (with A. Carroll)
  • Page last updated October 5, 2021

    Unless otherwise noted, all content © S. Meyers