Kirk R. Johnson

5.4k total citations
50 papers, 3.3k citations indexed

About

Kirk R. Johnson is a scholar working on Ecology, Evolution, Behavior and Systematics, Paleontology and Atmospheric Science. According to data from OpenAlex, Kirk R. Johnson has authored 50 papers receiving a total of 3.3k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Ecology, Evolution, Behavior and Systematics, 17 papers in Paleontology and 14 papers in Atmospheric Science. Recurrent topics in Kirk R. Johnson's work include Plant Diversity and Evolution (26 papers), Geology and Paleoclimatology Research (14 papers) and Paleontology and Stratigraphy of Fossils (11 papers). Kirk R. Johnson is often cited by papers focused on Plant Diversity and Evolution (26 papers), Geology and Paleoclimatology Research (14 papers) and Paleontology and Stratigraphy of Fossils (11 papers). Kirk R. Johnson collaborates with scholars based in United States, Argentina and Australia. Kirk R. Johnson's co-authors include Peter Wilf, Conrad C. Labandeira, Douglas J. Nichols, William L. Hylander, N. Rubén Cúneo, Robyn J. Burnham, Brian T. Huber, Beth Ellis, Brad S. Singer and Leo Hickey and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Kirk R. Johnson

49 papers receiving 3.1k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Kirk R. Johnson United States 29 1.8k 1.1k 795 676 558 50 3.3k
Andrea S. Meseguer France 20 1.3k 0.7× 679 0.6× 221 0.3× 848 1.3× 480 0.9× 34 2.9k
Ashok Sahni India 34 994 0.6× 2.2k 1.9× 447 0.6× 684 1.0× 206 0.4× 94 3.1k
Donald R. Prothero United States 28 704 0.4× 2.2k 2.0× 1.1k 1.4× 377 0.6× 245 0.4× 139 3.3k
Larry G. Marshall United States 34 911 0.5× 2.2k 2.0× 510 0.6× 678 1.0× 284 0.5× 87 3.4k
Thierry Smith Belgium 33 1.1k 0.6× 2.6k 2.3× 479 0.6× 933 1.4× 173 0.3× 159 3.6k
Diying Huang China 30 3.6k 2.0× 2.1k 1.9× 319 0.4× 153 0.2× 374 0.7× 438 5.1k
Gregory P. Wilson United States 23 475 0.3× 2.0k 1.8× 274 0.3× 632 0.9× 149 0.3× 63 2.5k
Véra Eisenmann France 15 335 0.2× 1.3k 1.1× 806 1.0× 169 0.3× 132 0.2× 35 2.2k
Barry A. Thomas United Kingdom 28 1.4k 0.8× 664 0.6× 627 0.8× 147 0.2× 530 0.9× 105 2.4k
F.P.D. Cotterill South Africa 28 650 0.4× 436 0.4× 121 0.2× 404 0.6× 138 0.2× 67 1.9k

Countries citing papers authored by Kirk R. Johnson

Since Specialization
Citations

This map shows the geographic impact of Kirk R. Johnson's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kirk R. Johnson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kirk R. Johnson more than expected).

Fields of papers citing papers by Kirk R. Johnson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kirk R. Johnson. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kirk R. Johnson. The network helps show where Kirk R. Johnson may publish in the future.

Co-authorship network of co-authors of Kirk R. Johnson

This figure shows the co-authorship network connecting the top 25 collaborators of Kirk R. Johnson. A scholar is included among the top collaborators of Kirk R. Johnson based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Kirk R. Johnson. Kirk R. Johnson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Kipp, Michael A., Eva E. Stüeken, Caroline A. E. Strömberg, et al.. (2023). Nitrogen isotopes reveal independent origins of N2-fixing symbiosis in extant cycad lineages. Nature Ecology & Evolution. 8(1). 57–69. 8 indexed citations
2.
Royer, Dana L., et al.. (2022). No Consistent Shift in Leaf Dry Mass per Area Across the Cretaceous—Paleogene Boundary. Frontiers in Plant Science. 13. 894690–894690. 9 indexed citations
3.
Wilf, Peter, Scott L. Wing, Herbert W. Meyer, et al.. (2021). An image dataset of cleared, x-rayed, and fossil leaves vetted to plant family for human and machine learning. PhytoKeys. 187. 93–128. 20 indexed citations
4.
Clyde, William C., Antoine Bercovici, Tyler R. Lyson, et al.. (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. 13 indexed citations
5.
Lyson, Tyler R., Ian M. Miller, Antoine Bercovici, et al.. (2019). Exceptional continental record of biotic recovery after the Cretaceous–Paleogene mass extinction. Science. 366(6468). 977–983. 131 indexed citations
6.
Erdei, Boglárka, et al.. (2019). First cycad seedling foliage from the fossil record and inferences for the Cenozoic evolution of cycads. Biology Letters. 15(7). 20190114–20190114. 10 indexed citations
7.
Royer, Dana L., Ian M. Miller, Clive Anderson, et al.. (2018). Multiple Proxy Estimates of Atmospheric CO2 From an Early Paleocene Rainforest. Paleoceanography and Paleoclimatology. 33(12). 1427–1438. 19 indexed citations
8.
Donovan, Michael P., Peter Wilf, Conrad C. Labandeira, Kirk R. Johnson, & Daniel J. Peppe. (2014). Novel Insect Leaf-Mining after the End-Cretaceous Extinction and the Demise of Cretaceous Leaf Miners, Great Plains, USA. PLoS ONE. 9(7). e103542–e103542. 52 indexed citations
9.
Wilf, Peter, Ignacio H. Escapa, N. Rubén Cúneo, et al.. (2014). First South American Agathis (Araucariaceae), Eocene of Patagonia. American Journal of Botany. 101(1). 156–179. 63 indexed citations
10.
Clyde, William C., Philip D. Gingerich, Scott L. Wing, et al.. (2013). Bighorn Basin Coring Project (BBCP): a continental perspective on early Paleogene hyperthermals. Scientific Drilling. 16. 21–31. 20 indexed citations
11.
Royer, Dana L., Lawren Sack, Peter Wilf, et al.. (2007). Fossil leaf economics quantified: calibration, Eocene case study, and implications. Paleobiology. 33(4). 574–589. 111 indexed citations
12.
Bogner, Josef, Kirk R. Johnson, Zlatko Kvaček, & Garland R. Upchurch. (2007). New fossil leaves of Araceae from the Late Cretaceous and Paleogene of western North America. Open access LMU (Ludwid Maxmilian's Universitat Munchen). 22 indexed citations
13.
Iglesias, Ari, Peter Wilf, Kirk R. Johnson, et al.. (2007). A Paleocene lowland macroflora from Patagonia reveals significantly greater richness than North American analogs. Geology. 35(10). 947–947. 123 indexed citations
14.
Raynolds, Robert G., et al.. (2007). Earth history along colorado's Front range: Salvaging geologic data in the suburbs and sharing it with the citizens. GSA Today. 17(12). 4–4. 8 indexed citations
15.
Labandeira, Conrad C., Kirk R. Johnson, & Peter Wilf. (2002). Impact of the terminal Cretaceous event on plant–insect associations. Proceedings of the National Academy of Sciences. 99(4). 2061–2066. 226 indexed citations
16.
Raynolds, Robert G., Kirk R. Johnson, Robert Fleming, et al.. (2001). The Kiowa core, a continuous drill core through the Denver Basin bedrock aquifers at Kiowa, Elbert County, Colorado. Antarctica A Keystone in a Changing World. 7 indexed citations
17.
Hylander, William L. & Kirk R. Johnson. (1994). Jaw muscle function and wishboning of the mandible during mastication in macaques and baboons. American Journal of Physical Anthropology. 94(4). 523–547. 136 indexed citations
18.
Daegling, David J., Matthew J. Ravosa, Kirk R. Johnson, & William L. Hylander. (1992). Influence of teeth, alveoli, and periodontal ligaments on torsional rigidity in human mandibles. American Journal of Physical Anthropology. 89(1). 59–72. 30 indexed citations
19.
Johnson, Kirk R. & Leo Hickey. (1988). Patterns of megafloral change across the Cretaceous-Tertiary boundary in the Northern Great Plains and Rocky Mountains. NASA STI Repository (National Aeronautics and Space Administration). 673. 87. 6 indexed citations
20.
Johnson, Kirk R. & Patrick Müller. (1985). Guatemala's Motagua Valley: a neglected piece of the northern Caribbean puzzle. Geol. Soc. Am., Abstr. Programs; (United States). 17. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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