World's Best Scientists 2026 revealed!
Richard J. Twitchett

Richard J. Twitchett

D-Index & Metrics

Earth Science

D-Index
51
Citations
11455
World Ranking
3175
National Ranking
360

Richard J. Twitchett 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 Richard J. Twitchett 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: 143 publications — 33rd percentile

33% of scientists in this discipline score the same or lower.

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

Richard J. Twitchett 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 Richard J. Twitchett 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: 51 D-Index — 59th percentile

59% of scientists in this discipline score the same or lower.

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

Overview

Richard J. Twitchett is affiliated with the Natural History Museum in the United Kingdom. Their research is primarily situated within the field of Earth and Planetary Sciences, with significant contributions to subfields such as Paleontology, Oceanography, Atmospheric Science, Geophysics, and Ecology.

Their scholarly work focuses on a range of main topics, including:

  • Paleontology and Stratigraphy of Fossils
  • Marine Biology and Ecology Research
  • Geology and Paleoclimatology Research
  • Evolution and Paleontology Studies
  • Geological and Geochemical Analysis
  • Ocean Acidification Effects and Responses
  • Paleontology and Evolutionary Biology

Richard J. Twitchett has published several recent papers, highlighting key areas of study over the past few years. These include:

  • "A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard," 2020, published in Palaeogeography Palaeoclimatology Palaeoecology
  • "Global record of "ghost" nannofossils reveals plankton resilience to high CO 2 and warming," 2022, published in Science
  • "Bioindicators of severe ocean acidification are absent from the end-Permian mass extinction," 2022, published in Scientific Reports
  • "Land-sea ecological connectivity during a Jurassic warming event," 2021, published in Earth and Planetary Science Letters
  • "Bivalve body-size distribution through the Late Triassic mass extinction event," 2022, published in Paleobiology

Their frequent co-authors include:

  • James D. Witts
  • Paul R. Bown
  • D. Tangunan
  • Sam M. Slater
  • Silvia Danise

Richard J. Twitchett's work often appears in the following publication venues:

  • Abstracts with programs - Geological Society of America
  • PLoS ONE
  • Palaeogeography Palaeoclimatology Palaeoecology
  • Science
  • Scientific Reports

Best Publications

  • Oceanic Anoxia and the End Permian Mass Extinction

    Paul B. Wignall;Richard J. Twitchett

  • Photic Zone Euxinia During the Permian-Triassic Superanoxic Event

    Kliti Grice;Changqun Cao;Gordon D. Love;Michael E. Böttcher

  • How to kill (almost) all life: the end-Permian extinction event

    Michael J. Benton;Richard J. Twitchett

  • Extent, duration, and nature of the Permian-Triassic superanoxic event

    Paul B. Wignall;Richard J. Twitchett

  • Anomalous Early Triassic sediment fluxes due to elevated weathering rates and their biological consequences

    Thomas J. Algeo;Richard J. Twitchett

  • Rapid and synchronous collapse of marine and terrestrial ecosystems during the end-Permian biotic crisis

    Richard J. Twitchett;Cindy V. Looy;Ric Morante;Henk Visscher

  • Terrestrial–marine teleconnections in the collapse and rebuilding of Early Triassic marine ecosystems

    Thomas J. Algeo;Zhong Q. Chen;Margaret L. Fraiser;Richard J. Twitchett

  • The Lilliput effect in the aftermath of the end-Permian extinction event

    Richard J. Twitchett

  • The palaeoclimatology, palaeoecology and palaeoenvironmental analysis of mass extinction events

    Richard J. Twitchett

  • Life in the end-Permian dead zone

    Cindy V. Looy;Richard J. Twitchett;David L. Dilcher;Johanna H. A. Van Konijnenburg-Van Cittert

  • Rapid marine recovery after the end-Permian mass-extinction event in the absence of marine anoxia

    R.J. Twitchett;L. Krystyn;A. Baud;J.R. Wheeley

  • Palaeoenvironments and faunal recovery after the end-Permian mass extinction

    Richard J Twitchett

  • Trace fossils and the aftermath of the Permo-Triassic mass extinction: evidence from northern Italy

    Richard J. Twitchett;Paul B. Wignall

  • A unique Permian^Triassic boundary section from the Neotethyan Hawasina Basin, Central Oman Mountains

    Leo Krystyn;Sylvain Richoz;Aymon Baud;Richard J. Twitchett

  • Functional diversity of marine ecosystems after the Late Permian mass extinction event

    William J. Foster;Richard J. Twitchett

  • Trace fossils in the aftermath of mass extinction events

    Richard J. Twitchett;Colin G. Barras

  • Unusual intraclastic limestones in Lower Triassic carbonates and their bearing on the aftermath of the end-Permian mass extinction

    Paul B. Wignall;Richard J. Twitchett

  • An integrated biomarker, isotopic and palaeoenvironmental study through the Late Permian event at Lusitaniadalen, Spitsbergen

    Birgit Nabbefeld;Kliti Grice;Richard J. Twitchett;Roger E. Summons

  • Physiological advantages of dwarfing in surviving extinctions in high-CO2 oceans

    Vittorio Garilli;Riccardo Rodolfo-Metalpa;Riccardo Rodolfo-Metalpa;Danilo Scuderi;Lorenzo Brusca

  • Unique marine Permian–Triassic boundary section from Western Australia

    B. M. Thomas;R. J. Willink;Kliti Grice;R. J. Twitchett

  • Substantial vegetation response to Early Jurassic global warming with impacts on oceanic anoxia

    Sam M. Slater;Richard J. Twitchett;Silvia Danise;Vivi Vajda

  • Incompleteness of the Permian–Triassic fossil record: a consequence of productivity decline?

    Richard J. Twitchett

Frequent Co-Authors

Gregory D. Price
Gregory D. Price Plymouth University
Paul B. Wignall
Paul B. Wignall University of Leeds
Kliti Grice
Kliti Grice Curtin University
Michael J. Benton
Michael J. Benton University of Bristol
Malcolm B. Hart
Malcolm B. Hart Plymouth University
Michael E. Böttcher
Michael E. Böttcher Leibniz Institute for Baltic Sea Research
Sylvain Richoz
Sylvain Richoz Lund University
Aymon Baud
Aymon Baud University of Lausanne
Sverre Planke
Sverre Planke University of Oslo

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying Earth Science opens doors to various interdisciplinary fields, and many students explore complementary online degrees to enhance their career prospects. For example, pursuing a bachelors in photography online can be valuable for those interested in environmental documentation or geospatial imaging.

Veterans looking to transition into Earth Science or related fields may find specialized programs tailored to their needs. Military-friendly options like the military friendly online photography degree programs provide flexibility and support that align with their unique circumstances.

Additionally, proficiency in languages such as Spanish is increasingly important for Earth Science professionals working in diverse communities and international contexts. Online degrees in language studies, including online degrees in spanish, can thus complement scientific skills and improve job opportunities.

Veterans can also benefit from programs like the online spanish bachelor degree for veterans, which combines language learning with military-friendly structures to support their career growth.

Best Scientists Citing Richard J. Twitchett

Trending Scientists

Recently Published Articles