Publications
(* Student author)

[pdf] Royer DL, McElwain JC, Adams JM, Wilf P. 2008. Sensitivity of leaf size and shape to climate within Acer rubrum and Quercus kelloggii. New Phytologist, doi: 10.1111/j.1469-8137.2008.02496.x. [supplemental information]

[pdf] Currano ED, Wilf P, Wing SL, Labandeira CC, Lovelock EC, Royer DL. 2008. Sharply increased insect herbiovory during the Paleocene-Eocene Thermal Maximum. Proceedings of the National Academy of Sciences USA, 105: 1960-1964. [supplemental information]

[pdf] Royer DL. 2008. Linkages between CO, climate, and evolution in deep time. Proceedings of the National Academy of Sciences USA, 105: 407-408. [invited commentary]

[pdf] Royer DL, Sack L, Wilf P, Lusk CH, Jordan GJ, Niinemets Ü, Wright IJ, Westoby M, Cariglino B, Coley PD, Cutter AD, Johnson KR, Labandeira CC, Moles AT, Palmer MB, Valladares F. 2007. Fossil leaf economics quantified: calibration, Eocene case study, and implications. Paleobiology, 33: 574-589. [online appendix A] [online appendix B]

[pdf] Royer DL, Berner RA, Park J. 2007. Climate sensitivity constrained by CO₂ concentrations over the past 420 million years. Nature, 446: 530-532. [supplemental information]

[pdf] Royer DL. 2006. CO₂-forced climate thresholds during the Phanerozoic. Geochimica et Cosmochimica Acta, 70: 5665-5675. [invited contribution, with cover] [supplemental information]

[pdf] Royer DL, Wilf P. 2006. Why do toothed leaves correlate with cold climates? Gas-exchange at leaf margins provides new insights into a classic paleotemperature proxy. International Journal of Plant Sciences, 167: 11-18.

[pdf] Fletcher BJ, Beerling DJ, Brentnall SJ, Royer DL. 2005. Fossil bryophytes as recorders of ancient CO₂ levels: Experimental evidence and a Cretaceous case study. Global Biogeochemical Cycles, 19, GB3012, doi:10.1029/2005GB002495.

[pdf] Royer DL, Wilf P, Janesko DA*, Kowalski EA, Dilcher DL. 2005. Correlating climate and plant ecology to leaf size and shape: potential proxies for the fossil record. American Journal of Botany, 92: 1141-1151. [supplemental information] [original leaf images]

[pdf] Royer DL, Osborne CP, Beerling DJ. 2005. Contrasting seasonal patterns of carbon gain in evergreen and deciduous trees of ancient polar forests. Paleobiology, 31: 141-150.

[pdf] Osborne CP, Royer DL, Beerling DJ. 2004. Adaptive role of leaf habit in extinct polar forests. International Forestry Review, 6: 181-186.

[pdf] Royer DL, Berner RA, Montanez IP, Tabor NJ, Beerling DJ. 2004. CO₂ as a primary driver of Phanerozoic climate change: Reply. GSA Today, 14(7): 18.

[pdf] Royer DL, Berner RA, Montanez IP, Tabor NJ, Beerling DJ. 2004. CO₂ as a primary driver of Phanerozoic climate change. GSA Today, 14(3): 4-10. [supplemental information]

[pdf] Royer DL, Osborne CP, Beerling DJ. 2003. Carbon loss by deciduous trees in a CO₂-rich ancient polar environment. Nature, 424: 60-62.

[pdf] Royer DL. 2003. Estimating latest Cretaceous and Tertiary atmospheric CO₂ from stomatal indices. In: Wing SL, Gingerich PD, Schmitz B, Thomas E (eds). Causes and Consequences of Globally Warm Climates in the Early Paleogene. Geological Society of America Special Paper, 369: 79-93.

[pdf] Kauffman SJ, Royer DL, Chang S, Berner RA. 2003. Export of chloride after clear-cutting in the Hubbard Brook sandbox experiment. Biogeochemistry, 63: 23-33.

[pdf] Royer DL, Hickey LJ, Wing SL. 2003. Ecological conservatism in the ‘living fossil’ Ginkgo. Paleobiology, 29: 84-104.

[pdf] Beerling DJ, Lake JA, Berner RA, Hickey LJ, Taylor DW, Royer DL. 2002. Carbon isotope evidence implying high O₂/CO₂ ratios in the Permo-Carboniferous atmosphere. Geochimica et Cosmochimica Acta, 66: 3757-3767.

[pdf] Royer DL, Osborne CP, Beerling DJ. 2002. High CO₂ increases the freezing sensitivity of plants: implications for paleoclimatic reconstructions from fossil floras. Geology, 30: 963-966.

[pdf] Beerling DJ, Lomax BH, Royer DL, Upchurch GR, Kump LR. 2002. An atmospheric pCO₂ reconstruction across the Cretaceous-Tertiary boundary from leaf megafossils. Proceedings of the National Academy of Sciences USA, 99: 7836-7840.

[pdf] Beerling DJ, Royer DL. 2002. Fossil plants as indicators of the Phanerozoic global carbon cycle. Annual Review of Earth and Planetary Sciences, 30: 527-556.

[pdf] Beerling DJ, Royer DL. 2002. Reading a CO₂ signal from fossil stomata. New Phytologist, 153: 387-397.

[pdf] Royer DL. 2002. Estimating latest Cretaceous and Tertiary PCO₂ from stomatal indices [Ph.D. thesis]. Yale University, New Haven, 163 p.

[pdf] Royer DL, Wing SL, Beerling DJ, Jolley DW, Koch PL, Hickey LH, Berner RA. 2001. Paleobotanical evidence for near present day levels of atmospheric CO₂ during part of the Tertiary. Science, 292: 2310-2313.

[pdf] Royer DL, Berner RA, Beerling DJ. 2001. Phanerozoic atmospheric CO₂ change: Evaluating geochemical and paleobiological approaches. Earth-Science Reviews, 54: 349-392.

[pdf] Royer DL. 2001. Stomatal density and stomatal index as indicators of paleoatmospheric CO₂ concentration. Review of Palaeobotany and Palynology, 114: 1-28.

[pdf] Gough L, Shaver GR, Carroll J, Royer DL, Laundre JA. 2000. Vascular plant species richness in Alaskan arctic tundra: The importance of soil pH. Journal of Ecology, 88: 54-66.

[pdf] Royer DL. 2000. Depth to pedogenic carbonate horizon as a paleoprecipitation indicator?: Reply. Geology, 28: 572-573.

[pdf] Royer DL. 1999. Depth to pedogenic carbonate horizon as a paleoprecipitation indicator? Geology, 27: 1123-1126. [supplemental information]

Media coverage

[link] Editorial Staff. 2008. Research Highlights: The big buzz. Nature Geoscience, 1: 210.

[link] Barnett A. 2008. Warm swarms. Nature Reports Climate Change, 2: 26.

[link] DeLucia EH, Casteel CL, Nabity PD, O'Neill BF. 2008. Insects take a bigger bite out of plants in a warmer, higher carbon dioxide world. Proceedings of the National Academy of Sciences USA, 105: 1781-1782.

[link] Riddihough G. 2007. Editors’ Choice: Nasty, brutish, and short. Science, 318: 1218.

[link] 2007 April 9. Global climate change questions and answers. WNPR: Where We Live. [audio]

[link] 2007 March 29. Nature podcast. [audio]

[link] Kalaugher L. 2007 March 29. Long-term geological record puts minimum value on climate sesntitivity. Environmentalresearchweb.

[link] Broad WJ. 2006. In ancient fossils, seeds of a new debate on warming. New York Times.

[link] Grant S. 2006. A natural phenomenom with some teeth to it. Hartford Courant.

[link] Viegas J. 2006. Leaves with pointy edges explained. Discovery News.

[link] Kerr RA. 2004. Vicissitudes of ancient climate. Science, 303: 307.

[link] Reebs S. 2004. CO₂: still guilty as charged. Natural History, 113(6): 12.

[link] Randerson J. 2002. Dead as a dino. New Scientist, 174(2347): 13.

[link] Roach J. 2002. Fossil leaves suggest asteroid killed dinosaurs. National Geographic.

[link] Smith HJ. 2001. Editors’ Choice: Understanding environmental change. Science, 294: 481.