Barry A. Thomas

3.3k total citations
105 papers, 2.4k citations indexed

About

Barry A. Thomas is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Atmospheric Science. According to data from OpenAlex, Barry A. Thomas has authored 105 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 62 papers in Ecology, Evolution, Behavior and Systematics, 32 papers in Plant Science and 26 papers in Atmospheric Science. Recurrent topics in Barry A. Thomas's work include Plant Diversity and Evolution (51 papers), Geology and Paleoclimatology Research (26 papers) and Fern and Epiphyte Biology (22 papers). Barry A. Thomas is often cited by papers focused on Plant Diversity and Evolution (51 papers), Geology and Paleoclimatology Research (26 papers) and Fern and Epiphyte Biology (22 papers). Barry A. Thomas collaborates with scholars based in United Kingdom, Germany and Bulgaria. Barry A. Thomas's co-authors include Christopher J. Cleal, Sheila D. Brack‐Hanes, Zhifeng Gao, Robert A. Spicer, Hayne Palmour, Leyla J. Seyfullah, Joan Watson, Lawrence C. Matten, Sergei V. Meyen and Erwin L. Zodrow and has published in prestigious journals such as Nature, New Phytologist and Journal of Ecology.

In The Last Decade

Barry A. Thomas

104 papers receiving 2.2k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Barry A. Thomas United Kingdom	28	1.4k	664	627	613	530	105	2.4k
Sérgio Archangelsky Argentina	34	2.4k 1.7×	1.4k 2.1×	664 1.1×	450 0.7×	888 1.7×	169	3.1k
Ronny Rößler Germany	24	786 0.5×	714 1.1×	406 0.6×	124 0.2×	368 0.7×	86	1.6k
K. L. Alvin United Kingdom	18	746 0.5×	399 0.6×	207 0.3×	399 0.7×	333 0.6×	33	1.2k
Ashok Sahni India	34	994 0.7×	2.2k 3.3×	447 0.7×	179 0.3×	206 0.4×	94	3.1k
Anita Roth‐Nebelsick Germany	23	583 0.4×	232 0.3×	469 0.7×	835 1.4×	219 0.4×	77	2.0k
Leyla J. Seyfullah Germany	18	746 0.5×	406 0.6×	129 0.2×	303 0.5×	234 0.4×	57	1.2k
Elizabeth M. Harper United Kingdom	37	485 0.3×	1.1k 1.7×	396 0.6×	137 0.2×	270 0.5×	139	3.8k
Monique Feist France	21	342 0.2×	898 1.4×	326 0.5×	108 0.2×	135 0.3×	59	1.6k
Jeffrey M. Osborn United States	21	911 0.6×	325 0.5×	513 0.8×	377 0.6×	552 1.0×	43	1.6k

Countries citing papers authored by Barry A. Thomas

Since Specialization

Citations

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

Fields of papers citing papers by Barry A. Thomas

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Barry A. Thomas. 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 Barry A. Thomas. The network helps show where Barry A. Thomas may publish in the future.

Co-authorship network of co-authors of Barry A. Thomas

This figure shows the co-authorship network connecting the top 25 collaborators of Barry A. Thomas. A scholar is included among the top collaborators of Barry A. Thomas 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 Barry A. Thomas. Barry A. Thomas is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Thomas, Barry A., et al.. (2024). Measurement of Depression and Anxiety in Chronic Low Back Pain and Fibromyalgia: A Validity Comparison of Four Patient-Reported Outcome Measures. Zürcher Hochschule für Angewandte Wissenschaften digital collection (Zurich University of Applied Sciences). 6(1). 2 indexed citations

Thomas, Barry A.. (2021). Why Lycospora dominated many Pennsylvanian spore assemblages. Zenodo (CERN European Organization for Nuclear Research). 77(1). 11–16. 1 indexed citations

Cleal, Christopher J., Heather S. Pardoe, Christopher M. Berry, et al.. (2021). Palaeobotanical experiences of plant diversity in deep time. 1: How well can we identify past plant diversity in the fossil record?. Palaeogeography Palaeoclimatology Palaeoecology. 576. 110481–110481. 33 indexed citations

Thomas, Barry A. & Jiřı́ Bek. (2014). A reassessment of the Pennsylvanian lycophyte cone Triplosporite Brown. Acta Geologica Polonica. 64(2). 139–145. 8 indexed citations

Thomas, Barry A.. (2013). In situ stems: preservation states and growth habits of the Pennsylvanian (Carboniferous) calamitaleans based upon new studies of Calamites Sternberg, 1820 in the Duckmantian at Brymbo, North Wales, UK. Palaeontology. 57(1). 21–36. 27 indexed citations

Cleal, Christopher J., et al.. (2011). Pennsylvanian vegetation and climate in tropical Variscan Euramerica. Episodes. 34(1). 3–12. 43 indexed citations

Wilson, James A. & Barry A. Thomas. (1999). Diet and Seed Dispersal Efficiency of the Gray Fox (Urocyon cinereoargenteus) in Chaparral. Occidental College Scholar (Occidental College). 6 indexed citations

Gao, Zhifeng & Barry A. Thomas. (1993). A new fern from the Lower Permian of China and its bearing on the evolution of the marattialeans. Biodiversity Heritage Library (Smithsonian Institution). 9 indexed citations

Cleal, Christopher J. & Barry A. Thomas. (1992). Lower Westphalian D fossil plants from the Nolton-Newgale Coalfield, Dyfed (Great Britain). Geobios. 25(3). 315–322. 4 indexed citations

10.

Thomas, Barry A., et al.. (1989). LEPIDODENDRON ACULEATUM WITH ATTACHED FOLIAGE: EVIDENCE OF STEM MORPHOLOGY AND FOSSILIZATION PROCESSES. American Journal of Botany. 76(2). 283–288. 10 indexed citations

11.

Gao, Zhifeng & Barry A. Thomas. (1989). A review of fossil cycad megasporophylls, with new evidence of Crossozamia pomel and its associated leaves from the lower permian of Taiyuan, China. Review of Palaeobotany and Palynology. 60(3-4). 205–223. 116 indexed citations

12.

Thomas, Barry A.. (1988). The Effectiveness of ECSC Aid for Redundant Coat and Steel Workers. Management Research News. 11(1/2). 46–47.

13.

Gao, Zhifeng & Barry A. Thomas. (1987). A re-evaluation of the plants Tingia and Tingiostachya from the Permian of Taiyuan, China. Biodiversity Heritage Library (Smithsonian Institution). 21 indexed citations

14.

Thomas, Barry A., et al.. (1987). THE DISTRIBUTION OF LIGNIN DERIVATIVES IN FOSSIL PLANTS. New Phytologist. 105(1). 157–173. 38 indexed citations

15.

Grace, J. Kenneth, et al.. (1986). Light and the Flowering Process.. Journal of Ecology. 74(2). 615–615. 24 indexed citations

16.

Thomas, Barry A., et al.. (1985). DISTRIBUTION OF LIGNIN DERIVATIVES IN PLANTS. New Phytologist. 99(4). 571–585. 56 indexed citations

17.

Brack‐Hanes, Sheila D. & Barry A. Thomas. (1983). A re-examination of Lepidostrobus Brongniart. Botanical Journal of the Linnean Society. 86(1-2). 125–133. 78 indexed citations

18.

Thomas, Barry A.. (1981). The fossil hunters —In search of ancient plants. Earth-Science Reviews. 17(3). 305–305. 6 indexed citations

19.

Thomas, Barry A.. (1976). An introduction to fossil plants. Journal of Biological Education. 10(4). 173–180. 3 indexed citations

20.

Palmour, Hayne, et al.. (1961). MECHANICAL properties of engineering ceramics. 182 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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