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Andrew H. Knoll 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 Andrew H. Knoll 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+

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

Andrew H. Knoll 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 Andrew H. Knoll 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+

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

Research.com Recognitions

  • 2026 - Research.com Earth Science in United States Leader Award
  • 2025 - Research.com Earth Science in United States Leader Award
  • 2022 - Research.com Earth Science in United States Leader Award
  • 1994 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1991 - Member of the National Academy of Sciences
  • 1987 - Fellow of the American Academy of Arts and Sciences
  • 1986 - Fellow of John Simon Guggenheim Memorial Foundation
  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America

Overview

Andrew H. Knoll is affiliated with Harvard University in the United States and has contributed extensively to Earth and Planetary Sciences, with a focus on paleontology and related subfields. Their research portfolio includes topics such as paleontology and stratigraphy of fossils, geology and paleoclimatology research, geochemistry and elemental analysis, planetary science and exploration, geological and geochemical analysis, marine and coastal plant biology, and aspects of astro and planetary science.

The scientist's recent publications demonstrate engagement with a range of subjects across Earth sciences and astrobiology. Notable papers include:

  • Biomineralization: Integrating mechanism and evolutionary history, 2022, Science Advances
  • Cyanobacteria and biogeochemical cycles through Earth history, 2021, Trends in Microbiology
  • Neoproterozoic origin and multiple transitions to macroscopic growth in green seaweeds, 2020, Proceedings of the National Academy of Sciences
  • A coupled model of episodic warming, oxidation and geochemical transitions on early Mars, 2021, Nature Geoscience
  • A persistently low level of atmospheric oxygen in Earth's middle age, 2021, Nature Communications

Their frequent collaborators reflect strong partnerships within the field. Prominent co-authors include Kristin Bergmann, J. P. Grotzinger, Marjorie Cantine, Robert M. Hazen, and Susannah M. Porter.

Andrew H. Knoll has also appeared regularly in several publication venues, indicating an active role in disseminating research findings. These venues include:

  • Abstracts with programs - Geological Society of America
  • Zenodo (CERN European Organization for Nuclear Research)
  • Nature Communications
  • Science Advances
  • Proceedings of the National Academy of Sciences

In terms of recognition, they have received multiple fellowships and memberships from prominent scientific organizations. Among these are:

  • Fellow of the American Association for the Advancement of Science (AAAS), 1994
  • Member of the National Academy of Sciences, 1991
  • Fellow of the American Academy of Arts and Sciences, 1987
  • Fellow of John Simon Guggenheim Memorial Foundation, 1986
  • Fellow of the Geological Society of America

The breadth of Andrew H. Knoll's work spans from detailed studies of fossils to broader planetary science questions, reflecting an interdisciplinary approach within Earth and planetary sciences. Their contributions offer insight into the evolution of life, environmental changes throughout geological time, and planetary processes beyond Earth.

Best Publications

  • The Evolution of Modern Eukaryotic Phytoplankton

    Paul G. Falkowski;Miriam E. Katz;Andrew H. Knoll;Antonietta Quigg

  • Neoproterozoic variations in the C-isotopic composition of seawater: stratigraphic and biogeochemical implications.

    Alan J. Kaufman;Andrew H. Knoll

  • Proterozoic ocean chemistry and evolution: A bioinorganic bridge?

    Ariel D. Anbar;Andrew Knoll

  • In situ evidence for an ancient aqueous environment at Meridiani Planum, Mars.

    Steven W. Squyres;John P. Grotzinger;Raymond E. Arvidson;James F. Bell

  • STROMATOLITES IN PRECAMBRIAN CARBONATES : EVOLUTIONARY MILEPOSTS OR ENVIRONMENTAL DIPSTICKS ?

    John P. Grotzinger;Andrew H. Knoll

  • Large Perturbations of the Carbon Cycle During Recovery from the End-Permian Extinction

    Jonathan L. Payne;Daniel J. Lehrmann;Jiayong Wei;Michael J. Orchard

  • Estimating the timing of early eukaryotic diversification with multigene molecular clocks

    Laura Wegener Parfrey;Daniel J. G. Lahr;Andrew H. Knoll;Laura A. Katz

  • Three-dimensional preservation of algae and animal embryos in a Neoproterozoic phosphorite

    Shuhai Xiao;Yun Zhang;Andrew H. Knoll

  • Early Animal Evolution: Emerging Views from Comparative Biology and Geology

    Andrew H. Knoll;Sean B. Carroll

  • Comparative Earth History and Late Permian Mass Extinction

    Andrew Knoll;Richard Bambach;Donald E. Canfield;John P. Grotzinger

  • Ferruginous Conditions Dominated Later Neoproterozoic Deep-Water Chemistry

    Donald E. Canfield;Simon W. Poulton;Andrew H. Knoll;Guy M. Narbonne

  • The early evolution of eukaryotes: a geological perspective.

    Andrew H. Knoll

  • Eukaryotic organisms in Proterozoic oceans

    Andrew Herbert Knoll;Emmanuelle J. Javaux;David Hewitt;Phoebe A Cohen

  • Secular variation in carbon isotope ratios from Upper Proterozoic successions of Svalbard and East Greenland.

    A. H. Knoll;J. M. Hayes;A. J. Kaufman;K. Swett

  • Paleophysiology and End-Permian Mass Extinction

    Andrew H. Knoll;Richard K. Bambach;Jonathan L. Payne;Sara Pruss

  • Calibrating rates of early Cambrian evolution.

    Samuel A. Bowring;John P. Grotzinger;Clark E. Isachsen;Andrew H. Knoll

  • The Vendian record of Sr and C isotopic variations in seawater: Implications for tectonics and paleoclimate

    Alan J. Kaufman;Stein B. Jacobsen;Andrew H. Knoll

  • The Multiple Origins of Complex Multicellularity

    Andrew H. Knoll

  • Biomarker evidence for green and purple sulphur bacteria in a stratified Palaeoproterozoic sea

    Jochen J. Brocks;Gordon D. Love;Roger E. Summons;Roger E. Summons;Andrew H. Knoll

  • Overview of the Spirit Mars Exploration Rover Mission to Gusev Crater: Landing site to Backstay Rock in the Columbia Hills

    R. E. Arvidson;S. W. Squyres;R. C. Anderson;J. F. Bell

  • Isotopes, Ice Ages, and Terminal Proterozoic Earth History

    Alan J. Kaufman;Andrew H. Knoll;Guy M. Narbonne

Frequent Co-Authors

John P. Grotzinger
John P. Grotzinger California Institute of Technology
Scott M. McLennan
Scott M. McLennan Stony Brook University
James F. Bell
James F. Bell Arizona State University
Raymond E. Arvidson
Raymond E. Arvidson Washington University in St. Louis
Nicholas J. Tosca
Nicholas J. Tosca University of Oxford
Steven W. Squyres
Steven W. Squyres Cornell University
William H. Farrand
William H. Farrand Space Science Institute
Jeffrey R. Johnson
Jeffrey R. Johnson Johns Hopkins University Applied Physics Laboratory
Alan J. Kaufman
Alan J. Kaufman University of Maryland, College Park
Malcolm R. Walter
Malcolm R. Walter University of New South Wales

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