Leo Hickey

7.7k total citations · 5 hit papers
74 papers, 5.9k citations indexed

About

Leo Hickey is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Molecular Biology. According to data from OpenAlex, Leo Hickey has authored 74 papers receiving a total of 5.9k indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Ecology, Evolution, Behavior and Systematics, 22 papers in Plant Science and 16 papers in Molecular Biology. Recurrent topics in Leo Hickey's work include Plant Diversity and Evolution (36 papers), Geology and Paleoclimatology Research (15 papers) and Plant and Fungal Species Descriptions (14 papers). Leo Hickey is often cited by papers focused on Plant Diversity and Evolution (36 papers), Geology and Paleoclimatology Research (15 papers) and Plant and Fungal Species Descriptions (14 papers). Leo Hickey collaborates with scholars based in United States, United Kingdom and Australia. Leo Hickey's co-authors include Scott L. Wing, James A. Doyle, David Winship Taylor, Jack A. Wolfe, Beth Ellis, Peter Wilf, Dana L. Royer, Kirk L. Johnson, John D. Mitchell and Douglas C. Daly and has published in prestigious journals such as Nature, Science and Geochimica et Cosmochimica Acta.

In The Last Decade

Leo Hickey

67 papers receiving 5.4k citations

Hit Papers

CLASSIFICATION OF THE ARCHITECTURE OF DICOTYLEDONOUS LEAVES 1973 2026 1990 2008 1973 2009 1975 1977 1973 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. CLASSIFICATION OF THE ARCHITECTURE OF DICOTYLEDONOUS LEAVES
    1973 797 citations Leo Hickey American Journal of Botany profile →
  2. Manual of Leaf Architecture
    2009 655 citations Leo Hickey, Scott L. Wing et al. profile →
  3. The Bases of Angiosperm Phylogeny: Vegetative Morphology
    1975 406 citations Leo Hickey et al. profile →
  4. Early cretaceous fossil evidence for angiosperm evolution
    1977 397 citations Leo Hickey et al. profile →
  5. Classification of the Architecture of Dicotyledonous Leaves
    1973 369 citations Leo Hickey American Journal of Botany profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Leo Hickey United States 31 4.0k 1.9k 1.8k 1.2k 1.1k 74 5.9k
Jack A. Wolfe United States 35 3.5k 0.9× 1.4k 0.7× 1.3k 0.7× 1.7k 1.4× 2.2k 2.0× 62 6.0k
Hans Kerp Germany 45 4.1k 1.0× 1.7k 0.9× 2.6k 1.4× 2.0k 1.7× 1.3k 1.2× 185 6.6k
Gar W. Rothwell United States 43 6.5k 1.6× 3.4k 1.8× 2.2k 1.2× 1.5k 1.3× 891 0.8× 278 7.5k
Kaj Raunsgaard Pedersen Denmark 41 4.7k 1.2× 3.1k 1.6× 1.3k 0.7× 1.5k 1.2× 510 0.5× 94 5.6k
Else Marie Friis Sweden 53 6.9k 1.7× 4.5k 2.3× 2.0k 1.1× 2.1k 1.7× 716 0.6× 138 8.3k
David L. Dilcher United States 54 7.6k 1.9× 3.5k 1.8× 3.0k 1.7× 3.2k 2.6× 2.6k 2.3× 233 11.3k
Richard M. Bateman United Kingdom 46 4.7k 1.2× 2.8k 1.4× 2.5k 1.4× 594 0.5× 436 0.4× 183 6.4k
William G. Chaloner United Kingdom 34 1.9k 0.5× 763 0.4× 915 0.5× 1.2k 1.0× 1.2k 1.1× 89 3.7k
Zhe‐Kun Zhou China 45 3.8k 0.9× 2.7k 1.4× 1.5k 0.8× 1.1k 0.9× 1.8k 1.6× 235 6.6k
Stephen McLoughlin Sweden 45 3.5k 0.9× 1.3k 0.7× 725 0.4× 2.8k 2.3× 1.5k 1.3× 177 5.8k

Countries citing papers authored by Leo Hickey

Since Specialization
Citations

This map shows the geographic impact of Leo Hickey'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 Leo Hickey with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Leo Hickey more than expected).

Fields of papers citing papers by Leo Hickey

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Leo Hickey. 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 Leo Hickey. The network helps show where Leo Hickey may publish in the future.

Co-authorship network of co-authors of Leo Hickey

This figure shows the co-authorship network connecting the top 25 collaborators of Leo Hickey. A scholar is included among the top collaborators of Leo Hickey 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 Leo Hickey. Leo Hickey 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.
2.
Royer, Dana L., Ian M. Miller, Daniel J. Peppe, & Leo Hickey. (2010). Leaf economic traits from fossils support a weedy habit for early angiosperms. American Journal of Botany. 97(3). 438–445. 72 indexed citations
3.
Peppe, Daniel J., Leo Hickey, Ian M. Miller, & Walton A. Green. (2008). A Morphotype Catalogue, Floristic Analysis and Stratigraphic Description of the Aspen Shale Flora(Cretaceous–Albian) of Southwestern Wyoming. BioOne Complete (BioOne). 49(2). 181–208. 28 indexed citations
4.
Peppe, Daniel J., J. Mark Erickson, & Leo Hickey. (2007). FOSSIL LEAF SPECIES FROM THE FOX HILLS FORMATION (UPPER CRETACEOUS: NORTH DAKOTA, USA) AND THEIR PALEOGEOGRAPHIC SIGNIFICANCE. Journal of Paleontology. 81(3). 550–567. 25 indexed citations
5.
Miller, Ian M., Mark Brandon, & Leo Hickey. (2006). Using leaf margin analysis to estimate the mid-Cretaceous (Albian) paleolatitude of the Baja BC block. Earth and Planetary Science Letters. 245(1-2). 95–114. 91 indexed citations
6.
Wildman, Richard A., et al.. (2003). Burning experiments and late Paleozoic high O2 levels. EAEJA. 7575. 1 indexed citations
7.
Royer, Dana L., Leo Hickey, & Scott L. Wing. (2003). Ecological conservatism in the “living fossil” Ginkgo. Paleobiology. 29(1). 84–104. 106 indexed citations
8.
Hickey, Leo. (2003). Field Notebook: FL, GA, DC 2003. Biodiversity Heritage Library (Smithsonian Institution). 1 indexed citations
9.
Hickey, Leo. (1990). Deviancy and Deviation in EduardoMendoza's Enchanged Crypt. Anales de la literatura española contemporánea, ALEC. 15(1). 51–64. 1 indexed citations
10.
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
11.
12.
Wing, Scott L. & Leo Hickey. (1984). THE PLATYCARYA PERPLEX AND THE EVOLUTION OF THE JUGLANDACEAE. American Journal of Botany. 71(3). 388–411. 60 indexed citations
13.
Wing, Scott L. & Leo Hickey. (1984). The Platycarya Perplex and the Evolution of the Juglandaceae. American Journal of Botany. 71(3). 388–388. 22 indexed citations
14.
Hickey, Leo. (1981). Land plant change across the Cretaceous-Tertiary boundary. LPICo. 449. 19. 1 indexed citations
15.
Archibald, J. David, et al.. (1981). Out with a whimper not a bang. Paleobiology. 7(3). 293–298. 48 indexed citations
16.
Hickey, Leo. (1980). Paleontologists and Continental Drift. Science. 210(4475). 1200–1200. 3 indexed citations
17.
Hickey, Leo, et al.. (1980). Historia de la novela espanola entre 1936 y 1975. The Modern Language Review. 75(4). 919–919. 3 indexed citations
18.
19.
Hickey, Leo & A. Fernandez Prieto. (1976). Morfologia de la novela. The Modern Language Review. 71(3). 611–611. 1 indexed citations
20.
Read, Robert W. & Leo Hickey. (1972). A REVISED CLASSIFICATION OF FOSSIL PALM AND PALM‐LIKE LEAVES. Taxon. 21(1). 129–137. 95 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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