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Gregory J. Retallack

Gregory J. Retallack

Gregory J. Retallack 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 Gregory J. Retallack 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.

Gregory J. Retallack 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 Gregory J. Retallack 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

  • 1997 - Fellow of the American Association for the Advancement of Science (AAAS)
  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America

Overview

Gregory J. Retallack is affiliated with the University of Oregon in the United States. Their research primarily focuses on Earth and Planetary Sciences, with a total of 139 publications in this field. Subfields of study include Paleontology, Atmospheric Science, Geophysics, Geochemistry and Petrology, and Earth-Surface Processes.

Their work covers several main topics:

  • Paleontology and Stratigraphy of Fossils
  • Geology and Paleoclimatology Research
  • Geological and Geochemical Analysis
  • Geochemistry and Elemental Analysis
  • Geological formations and processes
  • Geological and Geophysical Studies
  • Methane Hydrates and Related Phenomena

Among recent papers authored or coauthored by Gregory J. Retallack are the following:

  • Toward a Cenozoic history of atmospheric CO 2, 2023, Science
  • Long-term evolution of terrestrial weathering and its link to Earth's oxygenation, 2022, Earth and Planetary Science Letters
  • Deep time perspective on rising atmospheric CO2, 2020, Global and Planetary Change
  • Dickinsonia discovered in India and late Ediacaran biogeography, 2020, Gondwana Research
  • Multiple Permian-Triassic life crises on land and at sea, 2021, Global and Planetary Change

Frequent coauthors include:

  • Adrian Broz
  • Xuelian Guo
  • Ilya N. Bindeman
  • Jinhao Liu
  • Giselle Conde

Gregory J. Retallack's research features publications in several notable venues, with the highest number of publications appearing in these journals:

  • Journal of Palaeosciences
  • Harvard Dataverse
  • Gondwana Research
  • Australian Journal of Earth Sciences
  • Palaeogeography Palaeoclimatology Palaeoecology

Recognitions obtained include fellowships from the American Association for the Advancement of Science (AAAS), awarded in 1997, and fellowship in the Geological Society of America.

Best Publications

  • Soils of the Past: An introduction to paleopedology

    Gregory J. Retallack

  • Soils of the past

    Gregory J. Retallack

  • Field recognition of paleosols

    Greg J. Retallack

  • Geochemical Climofunctions from North American Soils and Application to Paleosols across the Eocene‐Oligocene Boundary in Oregon

    Nathan D. Sheldon;Gregory J. Retallack;Satoshi Tanaka

  • A 300-million-year record of atmospheric carbon dioxide from fossil plant cuticles

    Gregory J. Retallack

  • Pedogenic carbonate proxies for amount and seasonality of precipitation in paleosols

    Gregory J. Retallack

  • Global coal gap between Permian-Triassic extinction and Middle Triassic recovery of peat-forming plants

    Gregory J. Retallack;John J. Veevers;Ric Morante

  • Permian-triassic life crisis on land.

    G. J. Retallack

  • A colour guide to paleosols

    Greg J. Retallack

  • δ13C depth profiles from paleosols across the Permian-Triassic boundary: Evidence for methane release

    Evelyn S. Krull;Gregory J. Retallack

  • Cenozoic Expansion of Grasslands and Climatic Cooling

    Gregory J. Retallack

  • Soils of the Past: An Introduction to Paleopedology

    Donald A. Davidson;G. J. Retallack

  • Early Forest Soils and Their Role in Devonian Global Change

    Gregory J. Retallack

  • Were the Ediacaran fossils lichens

    Gregory J. Retallack

  • Vertebrate extinction across Permian–Triassic boundary in Karoo Basin, South Africa

    Gregory J. Retallack;Roger M.H. Smith;Peter D. Ward

  • Methane Release from Igneous Intrusion of Coal during Late Permian Extinction Events

    Gregory J. Retallack;A. Hope Jahren

  • Postapocalyptic greenhouse paleoclimate revealed by earliest Triassic paleosols in the Sydney Basin, Australia

    Gregory J. Retallack

  • Cenozoic Paleoclimate on Land in North America

    Gregory J. Retallack

  • Equation for compaction of paleosols due to burial

    Nathan D. Sheldon;Gregory J. Retallack

  • The environmental factor approach to the interpretation of paleosols.

    Gregory J. Retallack

Frequent Co-Authors

Nathan D. Sheldon
Nathan D. Sheldon University of Michigan–Ann Arbor
Evelyn S. Krull
Evelyn S. Krull CSIRO Land and Water
Lucas C. R. Silva
Lucas C. R. Silva University of Oregon
Andrey Bekker
Andrey Bekker University of California, Riverside
Jonathan G. Wynn
Jonathan G. Wynn National Science Foundation
David Krinsley
David Krinsley University of Oregon
A. Hope Jahren
A. Hope Jahren University of Oslo
Carl C. Swisher
Carl C. Swisher Rutgers, The State University of New Jersey
Ilya N. Bindeman
Ilya N. Bindeman University of Oregon
David L. Dilcher
David L. Dilcher Indiana University

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