Kirk R. Johnson

5.4k citations

50 papers · 3.3k indexed · h-index 29

Ecology, Evolution, Behavior and Systematics top 0.5%
Paleontology top 0.5%
Atmospheric Science top 2%
Nature and Landscape Conservation top 2%
Molecular Biology

Co-authors: Peter Wilf Conrad C. Labandeira Douglas J. Nichols William L. Hylander N. Rubén Cúneo Robyn J. Burnham Brian T. Huber Beth Ellis
Topics: Plant Diversity and Evolution (26 papers)Geology and Paleoclimatology Research (14 papers)Paleontology and Stratigraphy of Fossils (11 papers)
Cited by: Paleontology Ecology, Evolution, Behavior and Systematics Nature and Landscape Conservation
Journals: Nature Science Proceedings of the National Academy of Sciences
Partner nations: United States Argentina Australia

In The Last Decade

Kirk R. Johnson

49 papers receiving 3.1k citations

Peers

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

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Nitrogen isotopes reveal independent origins of N2-fixing symbiosis in extant cycad lineages 2023 ·Nature Ecology & Evolution ·Michael A. Kipp,Eva E. Stüeken,Caroline A. E. Strömberg,(unknown),Victoria M. Arbour,Boglárka Erdei,Robert S. Hill,Kirk R. Johnson,Jiřı́ Kvaček,Jennifer C. McElwain,Ian M. Miller,(unknown),Vivi Vajda,Roger Buick	8
2	No Consistent Shift in Leaf Dry Mass per Area Across the Cretaceous—Paleogene Boundary 2022 ·Frontiers in Plant Science ·(unknown),Dana L. Royer,Ian M. Miller,(unknown),(unknown),Tyler R. Lyson,Kirk R. Johnson,Richard S. Barclay	9
3	An image dataset of cleared, x-rayed, and fossil leaves vetted to plant family for human and machine learning 2021 ·PhytoKeys ·Peter Wilf,Scott L. Wing,Herbert W. Meyer,(unknown),(unknown),T. Serre,N. Rubén Cúneo,Michael P. Donovan,Diane M. Erwin,María A. Gandolfo,Erika Gonzalez‐Akre,Fabiany Herrera,Shusheng Hu,Ari Iglesias,Kirk R. Johnson,(unknown),(unknown)	20
4	Exceptional continental record of biotic recovery after the Cretaceous–Paleogene mass extinction 2019 ·Science ·Tyler R. Lyson,Ian M. Miller,Antoine Bercovici,(unknown),(unknown),William C. Clyde,James W. Hagadorn,(unknown),Kirk R. Johnson,Robert Fleming,Richard S. Barclay,S. Augusta Maccracken,(unknown),Gregory P. Wilson,David W. Krause,Stephen G. B. Chester	131
5	Constructing a time scale of biotic recovery across the Cretaceous–Paleogene boundary, Corral Bluffs, Denver Basin, Colorado, U.S.A. 2019 ·Rocky Mountain geology ·(unknown),William C. Clyde,(unknown),Antoine Bercovici,Tyler R. Lyson,Ian M. Miller,Jahandar Ramezani,(unknown),Mark D. Schmitz,Kirk R. Johnson	13
6	Multiple Proxy Estimates of Atmospheric CO₂ From an Early Paleocene Rainforest 2018 ·Paleoceanography and Paleoclimatology ·(unknown),Dana L. Royer,Ian M. Miller,Clive Anderson,David J. Beerling,Peter J. Franks,Michaela Grein,Wilfried Konrad,Anita Roth‐Nebelsick,Samuel A. Bowring,Kirk R. Johnson,Jahandar Ramezani	19
7	Specimen collections should have a much bigger role in infectious disease research and response 2016 ·Proceedings of the National Academy of Sciences ·Diane DiEuliis,Kirk R. Johnson,Stephen S. Morse,David E. Schindel	60
8	Plant Ecological Strategies Shift Across the Cretaceous–Paleogene Boundary 2014 ·PLoS Biology ·Benjamin Blonder,Dana L. Royer,Kirk R. Johnson,Ian M. Miller,Brian J. Enquist	46
9	Novel Insect Leaf-Mining after the End-Cretaceous Extinction and the Demise of Cretaceous Leaf Miners, Great Plains, USA 2014 ·PLoS ONE ·Michael P. Donovan,Peter Wilf,Conrad C. Labandeira,Kirk R. Johnson,Daniel J. Peppe	52
10	A complete Os excursion across a terrestrial Cretaceous–Paleogene boundary at the West Bijou Site, Colorado, with evidence for recent open system behavior 2014 ·Chemical Geology ·(unknown),Greg Ravizza,Steven Goderis,Justine Sauvage,Philippe Claeys,Kirk R. Johnson	7
11	First record of Todea (Osmundaceae) in South America, from the early Eocene paleorainforests of Laguna del Hunco (Patagonia, Argentina) 2013 ·American Journal of Botany ·Mónica R. Carvalho,Peter Wilf,Elizabeth J. Hermsen,María A. Gandolfo,N. Rubén Cúneo,Kirk R. Johnson	44
12	Fossil leaf economics quantified: calibration, Eocene case study, and implications 2007 ·Paleobiology ·Dana L. Royer,Lawren Sack,Peter Wilf,Bárbara Cariglino,Christopher H. Lusk,Ian J. Wright,Mark Westoby,Gregory J. Jordan,Ülo Niinemets,Phyllis D. Coley,Asher D. Cutter,Conrad C. Labandeira,Matthew B. Palmer,Kirk R. Johnson,Angela T. Moles,Fernando Valladares	111
13	New fossil leaves of Araceae from the Late Cretaceous and Paleogene of western North America 2007 ·Open access LMU (Ludwid Maxmilian's Universitat Munchen) ·Josef Bogner,Kirk R. Johnson,Zlatko Kvaček,Garland R. Upchurch	22
14	Land plant extinction at the end of the Cretaceous: a quantitative analysis of the North Dakota megafloral record 2004 ·Paleobiology ·Peter Wilf,Kirk R. Johnson	125
15	The Kiowa core, a continuous drill core through the Denver Basin bedrock aquifers at Kiowa, Elbert County, Colorado 2001 ·Antarctica A Keystone in a Changing World ·Robert G. Raynolds,Kirk R. Johnson,(unknown),(unknown),Robert Fleming,Jason F. Hicks,Shari Kelley,(unknown),Douglas J. Nichols,John D. Obradovich,Michael D. Wilson	7
16	Mandibular corpus strain in primates: Further evidence for a functional link between symphyseal fusion and jaw-adductor muscle force 1998 ·American Journal of Physical Anthropology ·William L. Hylander,(unknown),Callum F. Ross,Kirk R. Johnson	112
17	Jaw muscle function and wishboning of the mandible during mastication in macaques and baboons 1994 ·American Journal of Physical Anthropology ·William L. Hylander,Kirk R. Johnson	136
18	Influence of teeth, alveoli, and periodontal ligaments on torsional rigidity in human mandibles 1992 ·American Journal of Physical Anthropology ·David J. Daegling,Matthew J. Ravosa,Kirk R. Johnson,William L. Hylander	30
19	Patterns of megafloral change across the Cretaceous-Tertiary boundary in the Northern Great Plains and Rocky Mountains 1988 ·NASA STI Repository (National Aeronautics and Space Administration) ·Kirk R. Johnson,Leo Hickey	6
20	Guatemala's Motagua Valley: a neglected piece of the northern Caribbean puzzle 1985 ·Geol. Soc. Am., Abstr. Programs; (United States) ·Kirk R. Johnson,Patrick Müller	1

About Kirk R. Johnson

Kirk R. Johnson is a scholar working on Paleontology, Ecology, Evolution, Behavior and Systematics and Atmospheric Science, having authored 50 papers that have together received 3.3k indexed citations. Recurring topics across this work include Plant Diversity and Evolution (26 papers), Geology and Paleoclimatology Research (14 papers) and Paleontology and Stratigraphy of Fossils (11 papers). The work is most often cited by research in Paleontology (1.1k citations), Ecology, Evolution, Behavior and Systematics (1.8k citations) and Nature and Landscape Conservation (676 citations). Kirk R. Johnson has collaborated with scholars based in United States, Argentina and Australia. Frequent 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 Joseph H. Hartman. Their work appears in journals such as Nature, Science and Proceedings of the National Academy of Sciences.

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.

Explore authors with similar magnitude of impact