Jan Jansonius

4.0k total citations · 2 hit papers
30 papers, 3.6k citations indexed

About

Jan Jansonius is a scholar working on Paleontology, Ecology, Evolution, Behavior and Systematics and Atmospheric Science. According to data from OpenAlex, Jan Jansonius has authored 30 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Paleontology, 14 papers in Ecology, Evolution, Behavior and Systematics and 8 papers in Atmospheric Science. Recurrent topics in Jan Jansonius's work include Paleontology and Stratigraphy of Fossils (16 papers), Plant Diversity and Evolution (14 papers) and Geology and Paleoclimatology Research (8 papers). Jan Jansonius is often cited by papers focused on Paleontology and Stratigraphy of Fossils (16 papers), Plant Diversity and Evolution (14 papers) and Geology and Paleoclimatology Research (8 papers). Jan Jansonius collaborates with scholars based in Canada, Italy and United Kingdom. Jan Jansonius's co-authors include D C McGregor, Thomas Servais, Jim Craig, J. Utting, Amalia Spina, Claude Caratini, Frank L. Staplin, William C. Elsik, Simonetta Cirilli and John Marshall and has published in prestigious journals such as Palaeogeography Palaeoclimatology Palaeoecology, American Journal of Science and Taxon.

In The Last Decade

Jan Jansonius

29 papers receiving 3.3k citations

Hit Papers

Palynology: Principles and Applications 1997 2026 2006 2016 1997 2000 500 1000 1.5k
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. Palynology: Principles and Applications
    1997 1.9k citations Thomas Servais, Jan Jansonius et al. Micropaleontology profile →
  2. Fossil Plants and Spores: Modern Techniques
    2000 888 citations Jan Jansonius Review of Palaeobotany and Palynology profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Jan Jansonius Canada 16 2.0k 1.6k 1.2k 624 579 30 3.6k
D C McGregor Canada 15 1.7k 0.9× 1.3k 0.8× 630 0.5× 497 0.8× 320 0.6× 28 2.9k
A. M. Ziegler United States 33 2.3k 1.2× 1.7k 1.1× 564 0.5× 512 0.8× 296 0.5× 49 3.9k
Alfred Traverse United States 25 1.2k 0.6× 1.0k 0.6× 901 0.7× 162 0.3× 356 0.6× 79 2.5k
Philippe Steemans Belgium 29 2.1k 1.1× 1.2k 0.7× 1.2k 1.0× 264 0.4× 550 0.9× 148 3.0k
David J. Batten United Kingdom 34 2.0k 1.0× 1.2k 0.7× 1.1k 0.9× 182 0.3× 540 0.9× 133 3.8k
Maurice Streel Belgium 31 3.1k 1.6× 1.4k 0.8× 734 0.6× 213 0.3× 269 0.5× 220 3.9k
Nigel H. Trewin United Kingdom 33 1.5k 0.8× 1.2k 0.7× 586 0.5× 226 0.4× 153 0.3× 99 3.1k
Peter A. Hochuli Switzerland 42 3.4k 1.8× 1.7k 1.1× 853 0.7× 321 0.5× 315 0.5× 80 4.4k
William G. Chaloner United Kingdom 34 1.2k 0.6× 1.2k 0.8× 1.9k 1.5× 107 0.2× 763 1.3× 89 3.7k
J. Ian Raine New Zealand 29 1.0k 0.5× 1.3k 0.8× 709 0.6× 213 0.3× 287 0.5× 61 2.6k

Countries citing papers authored by Jan Jansonius

Since Specialization
Citations

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

Fields of papers citing papers by Jan Jansonius

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jan Jansonius

This figure shows the co-authorship network connecting the top 25 collaborators of Jan Jansonius. A scholar is included among the top collaborators of Jan Jansonius 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 Jan Jansonius. Jan Jansonius 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.
Spina, Amalia, Simonetta Cirilli, J. Utting, & Jan Jansonius. (2014). Palynology of the Permian and Triassic of the Tesero and Bulla sections (Western Dolomites, Italy) and consideration about the enigmatic species Reduviasporonites chalastus. Review of Palaeobotany and Palynology. 218. 3–14. 36 indexed citations
2.
Utting, J., Amalia Spina, Jan Jansonius, D C McGregor, & John Marshall. (2004). Reworked miospores in the upper paleozoic and Lower Triassic of the northern circum‐polar area and selected localities. Palynology. 28(1). 75–119. 13 indexed citations
3.
Hinte, J.E. van, et al.. (2000). 10.1016/0967-0653(96)80483-2. Scripta geologica. 109. 1–64. 5 indexed citations
4.
Jansonius, Jan. (2000). REDESCRIPTION OF SOME FOSSIL FUNGAL SPORES. Palynology. 24(1). 37–47. 17 indexed citations
5.
Jansonius, Jan, et al.. (2000). Redescription of some fossil fungal spores. Palynology. 24(1). 37–47. 2 indexed citations
6.
Jansonius, Jan. (2000). Fossil Plants and Spores: Modern Techniques. Review of Palaeobotany and Palynology. 110(3-4). 259–264. 888 indexed citations breakdown →
7.
Servais, Thomas, Jan Jansonius, & D C McGregor. (1997). Palynology: Principles and Applications. Micropaleontology. 43(3). 332–332. 1919 indexed citations breakdown →
8.
Jansonius, Jan, et al.. (1994). An Application of Conventional Biostratigraphy, Biofacies Analysis and Clay Mineralogy to the Dating of Mississippian-age Hydrothermal Dolomites, Wabamun Formation, NW Alberta. 303–303. 4 indexed citations
9.
Jansonius, Jan. (1989). The species of Fromea (fossil dinoflagellates). Review of Palaeobotany and Palynology. 61(1-2). 63–68. 6 indexed citations
10.
Jansonius, Jan. (1986). Reexamination of mesozoic canadian dinoflagellate cysts published by S. A. J. Pocock (1962, 1972). Palynology. 10(1). 201–223. 27 indexed citations
11.
Jansonius, Jan, et al.. (1985). Selected Tertiary Angiosperm Pollens from India and Their Relationship with African Tertiary Pollens. Taxon. 34(4). 751–751. 32 indexed citations
12.
13.
Jansonius, Jan. (1976). Palaeogene fungal spores and fruiting bodies of the Canadian arctic. 15(1). 129–132. 19 indexed citations
14.
Jansonius, Jan & Jim Craig. (1974). Some scolecodonts in organic association from Devonian strata of western Canada. 9(1). 15–26. 6 indexed citations
15.
Jansonius, Jan & Jim Craig. (1971). Scolecodonts: I. Descriptive Terminology and Revision of Systematic Nomenclature; II. Lectotypes, New Names for Homonyms, Index of Species. Bulletin of Canadian Petroleum Geology. 19(1). 251–293. 58 indexed citations
16.
Staplin, Frank L., et al.. (1967). Relationships among gymnospermous pollen. Review of Palaeobotany and Palynology. 3(1-4). 297–310. 19 indexed citations
17.
Jansonius, Jan. (1964). Morphology and Classification of Some Chitinozoa. Bulletin of Canadian Petroleum Geology. 12(4). 901–918. 108 indexed citations
18.
Jansonius, Jan. (1962). Palynology of permian and triassic sediments, Peace River area, Western Canada. Palaeontographica Abteilung B. 35–98. 164 indexed citations
19.
Jansonius, Jan, et al.. (1961). The Pollen Genus Classopollis Pflug, 1953. Micropaleontology. 7(4). 439–439. 94 indexed citations
20.
Staplin, Frank L., et al.. (1960). Palynological Techniques for Sediments. Micropaleontology. 6(3). 329–329. 19 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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