Publications
(* Student author; ** Post-doc author)

Summary from Google Scholar

2013
Royer DL, Chernoff B. In press. Diversity in neotropical wet forests during the Cenozoic linked more to atmospheric CO₂ than temperature. Proceedings of the Royal Society B.

Royer DL. In press. Atmospheric CO₂ and O₂ during the Phanerozoic: tools, patterns, and impacts. Geochemistry Treatise (invited contribution).

2012
Rohling EJ, Sluijs A, Dijkstra HA, Köhler P, van de Wal RSW, von der Heydt AS, Beerling D, Berger A, Bijl PK, Crucifix M, DeConto R, Drijfhout SS, Fedorov A, Foster G, Ganopolski A, Hansen J, Hönisch B, Hooghiemstra H, Huber M, Huybers P, Knutti R, Lea DW, Lourens LJ, Lunt D, Masson-Demotte V, Medina-Elizalde M, Otto-Bliesner B, Pagani M, Pälike H, Renssen H, Royer DL, Siddall M, Valdes P, Zachos JC, Zeebe RE. 2012. Making sense of palaeoclimate sensitivity. Nature, 491: 683-691.
   [reprint]
   [supplemental information]

Royer DL. 2012. Leaf shape responds to temperature but not CO₂ in Acer rubrum. PLoS ONE, 7(11): e49559. doi:10.1371/journal.pone.0049559.
   [reprint]

Royer DL. 2012. Climate reconstruction from leaf size and shape: new developments and challenges. In: Ivany LC, Huber BT (eds). Reconstructing Earth's Deep-Time Climate—The State of the Art in 2012. Paleontological Society Papers, 18: 195-212 (invited contribution).
   [reprint]

Poulos H, Bannon B, Isard J, Stonebraker P, Royer D, Yohe G, Chernoff B. 2012. The world through an interdisciplinary lens. Academe, 98(5): 41-43.
   [reprint] [web version]

Royer DL, Pagani M, Beerling DJ. 2012. Geobiological constraints on Earth system sensitivity to CO₂ during the Cretaceous and Cenozoic. Geobiology, 10: 298-310.
   [reprint]

Royer DL, Peppe DJ, Wheeler EA, Niinemets Ü. 2012. Roles of climate and functional traits in controlling toothed vs. untoothed leaf margins. American Journal of Botany, 99: 915-922.
   [reprint]
   [supplemental information]

Hönisch B, Ridgwell A, Schmidt DN, Thomas E, Gibbs SJ, Sluijs A, Zeebe R, Kump L, Martindale RC, Greene SE, Kiessling W, Ries J, Zachos JC, Royer DL, Barker S, Marchitto TM, Moyer R, Pelejero C, Ziveri P, Foster GL, Williams B. 2012. The geological record of ocean acidification. Science, 335: 1058-1063.
   [reprint]
   [supplemental information]

2011
Nicotra AB, Leigh A, Boyce CK, Jones CS, Niklas KJ, Royer DL, Tsukaya H. 2011. The evolution and functional significance of leaf shape in the angiosperms. Functional Plant Biology, 38: 535-552 (with cover).
   [reprint]

Beerling DJ, Royer DL. 2011. Convergent Cenozoic CO₂ history. Nature Geoscience, 4: 418-420.
   [reprint]
   [supplemental information]
   [editorial]

Doria G*, Royer DL, Wolfe AP, Fox A, Westgate JA, Beerling DJ. 2011. Declining atmospheric CO₂ during the late Middle Eocene climate transition. American Journal of Science, 311: 63-75.
   [reprint]

Park J, Royer DL. 2011. Geologic constraints on the glacial amplification of Phanerozoic climate sensitivity. American Journal of Science, 311: 1-26.
   [reprint]
   [commentary in Mother Jones]

Peppe DJ**, Royer DL, Cariglino B*, Oliver SY*, Newman S*, Leight E*, Enikolopov G*, Fernandez-Burgos M*, Herrera F, Adams JM, Correa E, Currano ED, Erickson JM, Hinojosa LF, Iglesias A, Jaramillo CA, Johnson KR, Jordan GJ, Kraft N, Lovelock EC, Lusk CH, Niinemets Ü, Peñuelas J, Rapson G, Wing SL, Wright IJ. 2011. Sensitivity of leaf size and shape to climate: global patterns and paleoclimatic applications. New Phytologist, 190: 724-739.
   [reprint]
   [supplemental information]
   [original leaf images]
   [commentary by Burnham & Tonkovich]
   [press release]

2010
Peppe DJ**, Royer DL, Wilf P, Kowalski EA. 2010. Quantification of large uncertainties in fossil leaf paleoaltimetry. Tectonics, 29, TC3015, doi:10.1029/2009TC002549.
   [reprint]
   [supplemental information]

Royer DL, Miller IM, Peppe DJ**, Hickey LJ. 2010. Leaf economic traits from fossils support a weedy habit for early angiosperms. American Journal of Botany, 97: 438-445.
   [reprint]
   [supplemental information]
   [press release]

Royer DL. 2010. Fossil soils constrain ancient climate sensitivity. Proceedings of the National Academy of Sciences USA, 107: 517-518. (invited commentary)
   [reprint]

2009
Royer DL, Meyerson LA, Robertson KM, Adams JM. 2009. Phenotypic plasticity of leaf shape along a temperature gradient in Acer rubrum. PLoS ONE, 4(10): e7653. doi:10.1371/journal/pone.0007653.
   [reprint]
   [supplemental information]

Royer DL, Kooyman RM, Little SA, Wilf P. 2009. Ecology of leaf teeth: A multi-site analysis from an Australian subtropical rainforest. American Journal of Botany, 96: 738-750.
   [reprint]
   [supplemental Appendix S1] [supplemental Appendix S2]

2008
Hansen J, Sato M, Kharecha P, Beerling D, Berner R, Masson-Delmotte V, Pagani M, Raymo M, Royer DL, Zachos JC. 2008. Target atmospheric CO₂: where should humanity aim? Open Atmospheric Science Journal, 2: 217-231.
   [reprint]
   [supplemental information]
   [commentary in The Guardian] [commentary in The New York Times] [science behind 350.org]

Royer DL. 2008. Nutrient turnover rates in ancient terrestrial ecosystems. Palaios, 23: 421-423. (invited "Spotlight")
   [reprint]

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, 179: 808-817.
   [reprint]
   [supplemental information]
   [original leaf images]

Currano ED, Wilf P, Wing SL, Labandeira CC, Lovelock EC, Royer DL. 2008. Sharply increased insect herbivory during the Paleocene-Eocene Thermal Maximum. Proceedings of the National Academy of Sciences USA, 105: 1960-1964.
   [reprint]
   [supplemental information]
   [commentary by DeLucia et al.] [commentary in Nature Reports Climate Change] [commentary in Nature Geoscience]

Royer DL. 2008. Linkages between CO₂, climate, and evolution in deep time. Proceedings of the National Academy of Sciences USA, 105: 407-408. (invited commentary)
   [reprint]

2007
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.
   [reprint]
   [online appendix A] [online appendix B]
   [Editors' Choice in Science]

Royer DL, Berner RA, Park J. 2007. Climate sensitivity constrained by CO₂ concentrations over the past 420 million years. Nature, 446: 530-532.
   [reprint]
   [supplemental information]
   [commentary in The Christian Science Monitor] [commentary in environmentalresearchweb] [commentary in ars technica]
   [podcast at Nature] [interview with Where We Live (WNPR)]
   [press release]

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

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.
   [reprint]
   [commentary in The Union] [commentary in Discovery News]

2005
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.
   [reprint]

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.
   [reprint]
   [supplemental information]
   [original leaf images]

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.
   [reprint]

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

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.
   [reprint]

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.
   [reprint]
   [supplemental information]
   [commentary in Science] [commentary in The New York Times] [commentary in Natural History]
   [press release]

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

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.
   [reprint]

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.
   [reprint]

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

2002
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.
   [reprint]

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.
   [reprint]

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.
   [reprint]
   [commentary in New Scientist] [commentary in National Geographic] [commentary in BBC News]

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.
   [reprint]

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

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

2001
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.
   [reprint]
   [commentary in Geology Today]

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

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

2000
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.
   [reprint]

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

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