World's Best Scientists 2026 revealed!
David A. T. Harper

David A. T. Harper

D-Index & Metrics

Earth Science

D-Index
53
Citations
29897
World Ranking
2783
National Ranking
314

David A. T. Harper publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where David A. T. Harper sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

This scientist: 370 publications — 92nd percentile

92% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 510 publications or more.

David A. T. Harper D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where David A. T. Harper sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

This scientist: 53 D-Index — 63rd percentile

63% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 94 D-Index or more.

Research.com Recognitions

  • 1943 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

David A. T. Harper is a researcher affiliated with Durham University in the United Kingdom. Their primary field of study is Earth and Planetary Sciences, with a significant focus on paleontology. Across 162 publications, their work spans several subfields including Paleontology, Atmospheric Science, Oceanography, Geophysics, and Geochemistry and Petrology.

Their research interests concentrate notably on paleontology and stratigraphy of fossils, geology and paleoclimatology, marine biology and ecology, as well as geological and geochemical analysis. Key topics they cover include:

  • Paleontology and Stratigraphy of Fossils
  • Geology and Paleoclimatology Research
  • Marine Biology and Ecology Research
  • Geological and Geochemical Analysis
  • Geochemistry and Elemental Analysis
  • Geological Studies and Exploration
  • Paleontology and Evolutionary Biology

Among their recent papers are several published in notable scientific journals, highlighting different aspects of ancient marine life and geological changes:

  • "The latest Ordovician Hirnantian brachiopod faunas: New global insights," 2020, Earth-Science Reviews
  • "The Great Ordovician Biodiversification Event (GOBE) is Not a Single Event," 2021, Paleontological Research
  • "No (Cambrian) explosion and no (Ordovician) event: A single long-term radiation in the early Palaeozoic," 2023, Palaeogeography Palaeoclimatology Palaeoecology
  • "Early−Middle Devonian brachiopod provincialism and bioregionalization at high latitudes: A case study from southwestern Gondwana," 2020, Geological Society of America Bulletin
  • "The palaeogeographical impact on the biodiversity of marine faunas during the Ordovician radiations," 2021, Global and Planetary Change

The researcher frequently publishes in venues such as Geological Society London Special Publications, Palaeogeography Palaeoclimatology Palaeoecology, Global and Planetary Change, Journal of Paleontology, and Proceedings of the Estonian Academy of Sciences Geology. These reflect a consistent engagement with geological and paleontological communities.

Collaborations form a notable part of their scientific activity. Frequent co-authors include Thomas Servais, Bertrand Lefèbvre, Jisuo Jin, Zhong-Qiang Chen, and Christian M. Ø. Rasmussen.

David A. T. Harper has been recognized with the title of Fellow of the American Association for the Advancement of Science (AAAS), awarded in 1943.

Best Publications

  • PAST: PALEONTOLOGICAL STATISTICAL SOFTWARE PACKAGE FOR EDUCATION AND DATA ANALYSIS

    Øyvind Hammer;David A. T. Harper;Paul D. Ryan

  • Ordovician and Silurian sea–water chemistry, sea level, and climate: A synopsis

    Axel Munnecke;Mikael Calner;David A.T. Harper;Thomas Servais

  • Numerical palaeobiology : computer-based modelling and analysis of fossils and their distributions

    D. A. T. Harper

  • The Great Ordovician Biodiversification Event (GOBE): The palaeoecological dimension

    Thomas Servais;Alan W. Owen;David A.T. Harper;Björn Kröger;Björn Kröger

  • End Ordovician extinctions: A coincidence of causes

    David A.T. Harper;Emma U. Hammarlund;Christian M.Ø. Rasmussen

  • Late Ordovician to earliest Silurian graptolite and brachiopod biozonation from the Yangtze region, South China, with a global correlation

    Chen Xu;Rong Jiayu;Charles E. Mitchell;David A. T. Harper

  • The Global Boundary Stratotype Section and Point (GSSP) for the base of the Hirnantian Stage (the uppermost of the Ordovician System)

    Xu Chen;Jiayu Rong;Junxuan Fan;Renbin Zhan

  • A revision of Ordovician series and stages from the historical type area

    R. A. Fortey;D. A. T. Harper;J. K. Ingham;A. W. Owen

  • The Ordovician biodiversification: Setting an agenda for marine life

    David A.T. Harper

  • Palaeoecology: Ecosystems, Environments and Evolution

    Patrick J. Brenchley;D. A. T. Harper

  • A global synthesis of the latest Ordovician Hirnantian brachiopod faunas

    Rong Jia-yu;David A. T. Harper

  • A sulfidic driver for the end-Ordovician mass extinction

    Emma U. Hammarlund;Emma U. Hammarlund;Emma U. Hammarlund;Tais W. Dahl;David A. T. Harper;David A. T. Harper;David P. G. Bond

  • Introduction to Paleobiology and the Fossil Record

    Michael J. Benton;David A. T. Harper

  • The Great Ordovician Biodiversification Event (GOBE) : definition, concept and duration

    Thomas Servais;David A.T. Harper;David A.T. Harper

  • TREATISE ON INVERTEBRATE PALEONTOLOGY

    Fernando Alvarez;A. D. Ansell;P. G. Baker;M. G. Bassett

  • Asteroid breakup linked to the Great Ordovician Biodiversification Event

    Birger Schmitz;David A. T. Harper;Bernhard Peucker-Ehrenbrink;Svend Stouge

  • Onset of main Phanerozoic marine radiation sparked by emerging Mid Ordovician icehouse

    Christian M. Ø. Rasmussen;Clemens V. Ullmann;Kristian G. Jakobsen;Anders Lindskog

  • Understanding the great ordovician biodiversification event (GOBE): influences of paleogeography, paleoclimate, or paleoecology

    Thomas Servais;David A.T. Harper;Axel Munnecke;Alan W. Owen

  • The latest Ordovician Hirnantia Fauna (Brachiopoda) in time and space

    Rong Jia-Yu;Chen Xu;David A.T. Harper

  • A suspension-feeding anomalocarid from the Early Cambrian

    Jakob Vinther;Martin Stein;Nicholas R. Longrich;David A. T. Harper

Frequent Co-Authors

Thomas Servais
Thomas Servais University of Lille
Rong Jia-Yu
Rong Jia-Yu Chinese Academy of Sciences
Glenn A. Brock
Glenn A. Brock Macquarie University
Lars E. Holmer
Lars E. Holmer Uppsala University
Jakob Vinther
Jakob Vinther University of Bristol
Axel Munnecke
Axel Munnecke University of Erlangen-Nuremberg
Leonid E. Popov
Leonid E. Popov Cardiff University
Peter M. Sheehan
Peter M. Sheehan Milwaukee Public Museum
Christian B. Skovsted
Christian B. Skovsted Swedish Museum of Natural History
Seth Finnegan
Seth Finnegan University of California, Berkeley

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