World's Best Scientists 2026 revealed!
Michael J. Orchard

Michael J. Orchard

D-Index & Metrics

Earth Science

D-Index
39
Citations
6767
World Ranking
6069
National Ranking
310

Michael J. Orchard 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 Michael J. Orchard 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: 169 publications — 46th percentile

46% of scientists in this discipline score the same or lower.

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

Michael J. Orchard 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 Michael J. Orchard 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: 39 D-Index — 23rd percentile

23% of scientists in this discipline score the same or lower.

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

Overview

Michael J. Orchard is affiliated with the Geological Survey of Canada, where their research primarily focuses on Earth and Planetary Sciences. The scientist has contributed extensively to paleontology, geophysics, mechanics of materials, geology, and geochemistry and petrology, reflecting a broad expertise in geosciences.

The main topics of their work include paleontology and stratigraphy of fossils, geological and geochemical analysis, hydrocarbon exploration and reservoir analysis, paleontology and evolutionary biology, geological studies and exploration, geochemistry and elemental analysis, and evolution and paleontology studies.

Orchard has published papers in several well-known scientific venues, including:

  • Global and Planetary Change
  • Abstracts with programs - Geological Society of America
  • Journal of the Geological Society
  • Earth and Planetary Science Letters
  • Palaeogeography Palaeoclimatology Palaeoecology

Recent papers authored or co-authored by Orchard cover a range of topics related to conodont biostratigraphy and paleoenvironmental studies. Notable publications include:

  • "Carnian-Norian (Late Triassic) climate change: Evidence from conodont oxygen isotope thermometry with implications for reef development and Wrangellian tectonics," 2020, Earth and Planetary Science Letters
  • "Lower Triassic conodont biostratigraphy of the Guryul Ravine section, Kashmir," 2021, Global and Planetary Change
  • "A proposed ontogenesis and evolutionary lineage of conodont Eurygnathodus costatus and its role in defining the base of the Olenekian (Lower Triassic)," 2020, Palaeogeography Palaeoclimatology Palaeoecology
  • "North American Spathian (upper Olenekian, Lower Triassic) neogondolellin conodonts," 2021, Papers in Palaeontology
  • "Integrated biochemostratigraphy of the Permian-Triassic boundary beds in a shallow carbonate platform setting (Yangou, South China)," 2021, Global and Planetary Change

Frequent collaborators include Martyn L. Golding, Zhong-Qiang Chen, Zhengyi Lyu, Yadong Sun, and Laishi Zhao, indicating active engagement in collaborative research efforts within the geosciences community.

Best Publications

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

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

  • Conodont diversity and evolution through the latest Permian and Early Triassic upheavals

    Michael J. Orchard

  • Carbon isotope anomaly and other geochemical changes at the Triassic-Jurassic boundary from a marine section in Hungary

    József Pálfy;Attila Demény;János Haas;Magdolna Hetényi

  • Timing of recovery from the end-Permian extinction: Geochronologic and biostratigraphic constraints from south China

    Daniel J. Lehrmann;Jahandar Ramezani;Samuel A. Bowring;Mark W. Martin

  • Triassic Conodont Biochronology, Its Calibration with the Ammonoid Standard, and a Biostratigraphic Summary for the Western Canada Sedimentary Basin

    M. J. Orchard;E. T. Tozer

  • Lower Triassic conodont sequence in Chaohu, Anhui Province, China and its global correlation

    Zhao Laishi;Michael J. Orchard;Tong Jinnan;Sun Zhiming

  • Triassic-Jurassic boundary events inferred from integrated stratigraphy of the Csővár section, Hungary

    József Pálfy;Attila Demény;János Haas;Elizabeth S. Carter

  • An integrated biostratigraphy (conodonts and foraminifers) and chronostratigraphy (paleomagnetic reversals, magnetic susceptibility, elemental chemistry, carbon isotopes and geochronology) for the Permian–Upper Triassic strata of Guandao section, Nanpanjiang Basin, south China

    Daniel J. Lehrmann;Leanne M. Stepchinski;Demir Altiner;Michael J. Orchard

  • The Lower Triassic Sulphur Mountain Formation in the Wapiti Lake area: lithostratigraphy, conodont biostratigraphy, and a new biozonation for the lower Olenekian (Smithian)Earth Science Sector (ESS) Contribution 20080714.

    M. J. Orchard;J.-P. Zonneveld

  • Upper Triassic conodont biochronology and new index species from the Canadian Cordillera

    M J Orchard

  • CONODONTS OF THE LOWERMOST TRIASSIC OF SPITI, AND NEW ZONATION BASED ON NEOGONDOLELLA SUCCESSIONS

    Michael J. Orchard;Leopold Krystyn

  • Triassic conodonts and their role in stage boundary definition

    Michael J. Orchard

  • A candidate of the Induan-Olenekian boundary stratotype in the Tethyan region

    Jinnan Tong;Yuri D. Zakharov;Michael J. Orchard;Hongfu Yin

  • Taxonomy and correlation of Lower Triassic (Spathian) segminate conodonts from Oman and revision of some species of Neospathodus

    M. J. Orchard

  • Sulfur-isotope anomaly associated with the Frasnian-Famennian extinction, Medicine Lake, Alberta, Canada

    Helmut H. J. Geldsetzer;Wayne D. Goodfellow;Digby J. McLaren;Mike J. Orchard

  • Geology of the western flank of the Coast Mountains between Cape Fanshaw and Taku Inlet, southeastern Alaska

    George E. Gehrels;William C. McClelland;Scott D. Samson;P. Jonathan Patchett

  • Synchrotron-aided reconstruction of the conodont feeding apparatus and implications for the mouth of the first vertebrates.

    Nicolas Goudemand;Michael J. Orchard;Séverine Urdy;Hugo Bucher

  • Conodonts from the Lower Griesbachian Otoceras Latilobatum Bed of Selong, Tibet and the Position of the Permian—Triassic Boundary

    M. J. Orchard;W. W. Nassichuk;Lin Rui

  • Lower Triassic conodonts from the Canadian Arctic, their intercalibration with ammonoid-based stages and a comparison with other North American Olenekian faunas

    Michael J. Orchard

  • Impact of differential tectonic subsidence on isolated carbonate-platform evolution: Triassic of the Nanpanjiang Basin, south China

    Daniel J. Lehrmann;Pei Donghong;Paul Enos;Marcello Minzoni

  • The Smithian/Spathian boundary (late Early Triassic): A review of ammonoid, conodont, and carbon-isotopic criteria

    Lei Zhang;Lei Zhang;Michael J. Orchard;Michael J. Orchard;Arnaud Brayard;Thomas J. Algeo;Thomas J. Algeo

Frequent Co-Authors

John-Paul Zonneveld
John-Paul Zonneveld University of Alberta
Daniel J. Lehrmann
Daniel J. Lehrmann Trinity University
Laishi Zhao
Laishi Zhao China University of Geosciences
Zhong-Qiang Chen
Zhong-Qiang Chen China University of Geosciences
Thomas J. Algeo
Thomas J. Algeo University of Cincinnati
Jonathan L. Payne
Jonathan L. Payne Stanford University
Charles M. Henderson
Charles M. Henderson University of Calgary
Hugo Bucher
Hugo Bucher University of Zurich

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