Search Results
Showing 1-20 of about 119 results.
A global approach for natural history museum collectionsDOI: info:10.1126/science.adf6434v. 379No. 6638American Association for the Advancement of Science1192–1194
Johnson, Kirk R., Owens, Ian F. P., and Global Collection Group. 2023. "A global approach for natural history museum collections." Science, 379, (6638) 1192–1194. https://doi.org/10.1126/science.adf6434.
Nitrogen isotopes reveal independent origins of N2-fixing symbiosis in extant cycad lineagesDOI: info:10.1038/s41559-023-02251-1
Kipp, Michael A., Stüeken, Eva E., Strömberg, Caroline A. E., Brightly, William H., Arbour, Victoria M., Erdei, Boglárka, Hill, Robert S., Johnson, Kirk R., Kvaček, Jiří, McElwain, Jennifer C., Miller, Ian M., Slodownik, Miriam, Vajda, Vivi, and Buick, Roger. 2023. "Nitrogen isotopes reveal independent origins of N2-fixing symbiosis in extant cycad lineages." Nature Ecology & Evolution, https://doi.org/10.1038/s41559-023-02251-1.
No Consistent Shift in Leaf Dry Mass per Area Across the Cretaceous-Paleogene BoundaryDOI: info:10.3389/fpls.2022.894690v. 13Frontiers Media SA
Butrim, Matthew J., Royer, Dana L., Miller, Ian M., Dechesne, Marieke, Neu-Yagle, Nicole, Lyson, Tyler R., Johnson, Kirk R., and Barclay, Richard S. 2022. "No Consistent Shift in Leaf Dry Mass per Area Across the Cretaceous-Paleogene Boundary." Frontiers in Plant Science, 13. https://doi.org/10.3389/fpls.2022.894690.
Insect herbivory on gen. et sp. nov. (Lauraceae) from the Kaiparowits Formation (Late Cretaceous, Utah, USA)DOI: info:10.1371/journal.pone.0261397v. 17No. 1Public Library of Science
Maccracken, S. Augusta, Miller, Ian M., Johnson, Kirk R., Sertich, Joseph M., and Labandeira, Conrad C. 2022. "Insect herbivory on Catula gettyi gen. et sp. nov. (Lauraceae) from the Kaiparowits Formation (Late Cretaceous, Utah, USA)." Plos One, 17, (1). https://doi.org/10.1371/journal.pone.0261397.
Trees Are Made of Gas: The Story of Carbon and ClimateChicago Review Press
Johnson, Kirk R. and Bonnell, Mary Ann. 2021. Trees Are Made of Gas: The Story of Carbon and Climate. Chicago, Illinois: Chicago Review Press.
An image dataset of cleared, x-rayed, and fossil leaves vetted to plant family for human and machine learningDOI: info:10.3897/phytokeys.187.72350v. 18793–128
Wilf, Peter, Wing, Scott L., Meyer, Herbert W., Rose, Jacob A., Saha, Rohit, Serre, Thomas, Cúneo, N. Rubén, Donovan, Michael P., Erwin, Diane M., Gandolfo, Maria A., Gonzalez-Akre, Erika, Herrera, Fabiany, Hu, Shusheng, Iglesias, Ari, Johnson, Kirk R., Karim, Talia S., and Zou, Xiaoyu. 2021. "An image dataset of cleared, x-rayed, and fossil leaves vetted to plant family for human and machine learning." PhytoKeys, 187 93–128. https://doi.org/10.3897/phytokeys.187.72350.
Presentation of the 2019 Harrell L. Strimple Award of the Paleontological Society to James L. GoedertDOI: info:10.1017/jpa.2020.55v. 94No. 5CAMBRIDGE UNIV PRESS1015–1015
Johnson, Kirk R. 2020. "Presentation of the 2019 Harrell L. Strimple Award of the Paleontological Society to James L. Goedert." Journal of Paleontology, 94, (5) 1015–1015. https://doi.org/10.1017/jpa.2020.55.
Visions of lost worlds: the paleoart of Jay MatternesSmithsonian Books230
Carrano, Matthew T. and Johnson, Kirk R. 2019. Visions of lost worlds: the paleoart of Jay Matternes. Washington, DC: Smithsonian Books.
First cycad seedling foliage from the fossil record and inferences for the Cenozoic evolution of cycadsDOI: info:10.1098/rsbl.2019.0114v. 15No. 7The Royal Society
Erdei, Boglárka, Coiro, Mario, Miller, Ian, Johnson, Kirk R., Griffith, M. Patrick, and Murphy, Vickie. 2019. "First cycad seedling foliage from the fossil record and inferences for the Cenozoic evolution of cycads." Biology Letters, 15, (7). https://doi.org/10.1098/rsbl.2019.0114.
Constructing a time scale of biotic recovery across the Cretaceous–Paleogene boundary, Corral Bluffs, Denver Basin, Colorado, U.S.ADOI: info:10.24872/rmgjournal.54.2.133v. 54No. 2133–153
Fuentes, Anthony J., Clyde, William C., Weissenburger, Ken, Bercovici, Antoine, Lyson, Tyler R., Miller, Ian M., Ramezani, Jahandar, Isakson, Vincent, Schmitz, Mark D., and Johnson, Kirk R. 2019. "Constructing a time scale of biotic recovery across the Cretaceous–Paleogene boundary, Corral Bluffs, Denver Basin, Colorado, U.S.A." Rocky Mountain Geology, 54, (2) 133–153. https://doi.org/10.24872/rmgjournal.54.2.133.
No Large Bias within Species between the Reconstructed Areas of Complete and Fragmented Fossil LeavesDOI: info:10.2110/palo.2018.091v. 34No. 1SEPM-SOC SEDIMENTARY GEOLOGY43–48
Hagen, Eric R., Royer, Dana L., Moye, Ryan A., and Johnson, Kirk R. 2019. "No Large Bias within Species between the Reconstructed Areas of Complete and Fragmented Fossil Leaves." Palaios, 34, (1) 43–48. https://doi.org/10.2110/palo.2018.091.
Exceptional continental record of biotic recovery after the Cretaceous-Paleogene mass extinctionDOI: info:10.1126/science.aay2268v. 366No. 6468AMER ASSOC ADVANCEMENT SCIENCE977–+
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–+. https://doi.org/10.1126/science.aay2268.
Cruisin' the fossil coastline: the travels of an artist and a scientist along the shores of the prehistoric PacificFulcrum Publishing268
Johnson, Kirk R. and Troll, Ray. 2018. Cruisin' the fossil coastline: the travels of an artist and a scientist along the shores of the prehistoric Pacific. Golden, CO: Fulcrum Publishing.
Multiple Proxy Estimates of Atmospheric CO From an Early Paleocene RainforestDOI: info:10.1029/2018PA003356v. 33No. 121427–1438
Kowalczyk, Jennifer B., Royer, Dana L., Miller, Ian M., Anderson, Clive W., Beerling, David J., Franks, Peter J., Grein, Michaela, Konrad, Wilfried, Roth-Nebelsick, Anita, Bowring, Samuel A., Johnson, Kirk R., and Ramezani, Jahandar. 2018. "Multiple Proxy Estimates of Atmospheric CO 2 From an Early Paleocene Rainforest." Paleoceanography and Paleoclimatology, 33, (12) 1427–1438. https://doi.org/10.1029/2018PA003356.
Direct high-precision U–Pb geochronology of the end-Cretaceous extinction and calibration of Paleocene astronomical timescalesDOI: info:10.1016/j.epsl.2016.07.041v. 452272–280
Clyde, William C., Ramezani, Jahandar, Johnson, Kirk R., Bowring, Samuel A., and Jones, Matthew M. 2016. "Direct high-precision U–Pb geochronology of the end-Cretaceous extinction and calibration of Paleocene astronomical timescales." Earth and Planetary Science Letters, 452 272–280. https://doi.org/10.1016/j.epsl.2016.07.041.
Opinion: Specimen collections should have a much bigger role in infectious disease research and responseDOI: info:10.1073/pnas.1522680112v. 113No. 1National Academy of Sciences (U.S.)4–7
DiEuliis, Diane, Johnson, Kirk R., Morse, Stephen S., and Schindel, David E. 2016. "Opinion: Specimen collections should have a much bigger role in infectious disease research and response." Proceedings of the National Academy of Sciences of the United States of America, 113, (1) 4–7. https://doi.org/10.1073/pnas.1522680112.
In his own wordsDOI: info:10.1515/agp-2016-0030v. 66No. 4Polish Academy of Sciences, University of Warsaw, Geology DepartmentIII–XIII
Johnson, Kirk R. and Baysinger, Dave. 2016. "In his own words." Acta Geologica Polonica, 66, (4) III–XIII. https://doi.org/10.1515/agp-2016-0030.
Ancient Wyoming: A Dozen Lost Worlds Based on the Geology of the Bighorn BasinFulcrum Publishing64
Johnson, Kirk R. and Clyde, Will. 2016. Ancient Wyoming: A Dozen Lost Worlds Based on the Geology of the Bighorn Basin. Golden, CO: Fulcrum Publishing.
Dinosaur skeleton occurrence in the latest Cretaceous (late Maastrichtian) Hell Creek formatin of Southwestern North Dakota and Souteastern Montana [presentation]
Lyson, Tyler R., Rossetto, Gabriella, Evans, Erica S. J., Bercovici, Antoine, Johnson, Kirk R., and Pearson, Dean. 2016. Dinosaur skeleton occurrence in the latest Cretaceous (late Maastrichtian) Hell Creek formatin of Southwestern North Dakota and Souteastern Montana [presentation]. Geological Society of America Annual Meeting, September 27, 2016. Denver, CO.
Evaluating Relationships among Floating Aquatic Monocots: a New Species of Cobbania (Araceae) from the Upper Maastrichtian of South DakotaDOI: info:10.1086/688285v. 177No. 8University of Chicago Press706–725
Stockey, Ruth A., Rothwell, Gar W., and Johnson, Kirk R. 2016. "Evaluating Relationships among Floating Aquatic Monocots: a New Species of Cobbania (Araceae) from the Upper Maastrichtian of South Dakota." International Journal of Plant Sciences, 177, (8) 706–725. https://doi.org/10.1086/688285.