Smithsonian National Museum of Natural History

Richard Barclay

Research Geologist

I am a paleobotanist who uses fossil plants to solve geological problems. I study deep-time fossil plant records, integrate those with high-resolution geochemical records, and work within temporally well-constrained sections to maximize the results of my efforts. My research interests focus on 4 main areas: 1) global carbon cycle perturbations; 2) paleoclimate change; 3) mass extinction events; and 4) species evolution and radiation.

Department / Division
  • Ph.D. Northwestern University, 2011
  • M.S. University of Florida, 2002
  • B.S. Western Washington University, 1996
Additional Resources

Personal Research Web Site:

  • Baker, Sarah J., Belcher, Claire M., Barclay, Richard S., Hesselbo, Stephen P., Laurin, Jiri, and Sageman, Bradley B. 2020. "CO2-induced climate forcing on the fire record during the initiation of Cretaceous oceanic anoxic event 2." Geological Society of America Bulletin 132 (1-2):321-333.
  • Fetter, Karl C., Eberhardt, Sven, Barclay, Rich S., Wing, Scott L., and Keller, Stephen R. 2019. "StomataCounter: a neural network for automatic stomata identification and counting." New Phytologist 223 (3):1671-1681.
  • Laurin, Jiri, Barclay, Richard S., Sageman, Bradley B., Dawson, Robin R., Pagani, Mark, Schmitz, Mark, Eaton, Jeffrey, McInerney, Francesca A., and McElwain, Jennifer C. 2019. "Terrestrial and marginal-marine record of the mid-Cretaceous Oceanic Anoxic Event 2 (OAE 2): High-resolution framework, carbon isotopes, CO2 and sea-level change." Palaeogeography Palaeoclimatology Palaeoecology 524:118-136.
  • Lyson, T. R., Miller, I. M., Bercovici, A. D., Weissenburger, K., Fuentes, A. J., Clyde, W. C., Hagadorn, J. W., Butrim, M. J., Johnson, K. R., Fleming, R. F., Barclay, R. S., Maccracken, S. A., Lloyd, B., Wilson, G. P., Krause, D. W., and Chester, S. G. B. 2019. "Exceptional continental record of biotic recovery after the Cretaceous-Paleogene mass extinction." Science 366 (6468):977-+.
  • Soul, Laura C., Barclay, Richard S., Bolton, Amy, and Wing, Scott L. 2019. "Fossil Atmospheres: a case study of citizen science in question-driven palaeontological research." Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 374 (1763):20170388.
  • Percival, Lawrence M. E., Jenkyns, Hugh C., Mather, Tamsin A., Dickson, Alexander J., Batenburg, Sietske J., Ruhl, Micha, Hesselbo, Stephen P., Barclay, Richard, Jarvis, Ian, Robinson, Stuart A., and Woelders, Lineke. 2018. "Does Large Igneous Province Volcanism always Perturb the Mercury Cycle? Comparing the Records of Oceanic Anoxic Event 2 and the End-Cretaceous to Other Mesozoic Events." American Journal of Science 318 (8):799-860.
  • Urban, Michael A., Barclay, Richard S., Sivaguru, Mayandi, and Punyasena, Surangi W. 2018. "Cuticle and subsurface ornamentation of intact plant leaf epidermis under confocal and superresolution microscopy." Microscopy research and technique 81 (2):129-140.
  • Tesfamichael, Tekie, Jacobs, Bonnie, Tabor, Neil, Michel, Lauren, Currano, Ellen, Feseha, Mulugeta, Barclay, Richard, Kappelman, John, and Schmitz, Mark. 2017. "Settling the issue of "decoupling" between atmospheric carbon dioxide and global temperature: [CO2](atm) reconstructions across the warming Paleogene-Neogene divide." Geology 45 (11):999-1002.
  • Barclay, Richard S. and Wing, Scott L. 2016. "Improving the Ginkgo CO2 barometer: Implications for the early Cenozoic atmosphere." Earth and Planetary Science Letters 439:158-171.
  • Barclay, Richard S., Rioux, Matthew, Meyer, Laura B., Bowring, Samuel A., Johnson, Kirk R., and Miller, Ian M. 2015. "High precision U–Pb zircon geochronology for Cenomanian Dakota Formation floras in Utah." Cretaceous Research 52A:213-237.

... more... less