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Michael J. Orchard

Michael J. Orchard

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 39 6069 5620 310 282 169 6767

Michael J. Orchard publications per year

The chart shows the history of publications by Michael J. Orchard between 1973 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Michael J. Orchard published across 53 years, from 1973 to 2025, averaging 3.5 papers a year. Output peaked at 17 publications in 1991. 5 of the 183 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1973 to 2025. Vertical axis: number of publications, 0 to 17. Peak 17 publications in 1991. 1973: 2 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 1 publication 1980: 0 publications 1981: 1 publication 1982: 2 publications 1983: 0 publications 1984: 3 publications 1985: 6 publications 1986: 2 publications 1987: 2 publications 1988: 4 publications 1989: 6 publications 1990: 4 publications 1991: 17 publications 1992: 3 publications 1993: 1 publication 1994: 5 publications 1995: 3 publications 1996: 4 publications 1997: 3 publications 1998: 4 publications 1999: 7 publications 2000: 1 publication 2001: 5 publications 2002: 2 publications 2003: 5 publications 2004: 2 publications 2005: 0 publications 2006: 3 publications 2007: 14 publications 2008: 5 publications 2009: 2 publications 2010: 4 publications 2011: 2 publications 2012: 8 publications 2013: 2 publications 2014: 4 publications 2015: 4 publications 2016: 10 publications 2017: 3 publications 2018: 5 publications 2019: 3 publications 2020: 4 publications 2021: 3 publications 2022: 3 publications 2023: 4 publications 2024: 3 publications 2025: 2 publications
1973 2025

183 publications in total across all disciplines

View publications per year as a table
Michael J. Orchard: publications per year, 1973 to 2025
Year Publications
1973 2
1974 0
1975 0
1976 0
1977 0
1978 0
1979 1
1980 0
1981 1
1982 2
1983 0
1984 3
1985 6
1986 2
1987 2
1988 4
1989 6
1990 4
1991 17
1992 3
1993 1
1994 5
1995 3
1996 4
1997 3
1998 4
1999 7
2000 1
2001 5
2002 2
2003 5
2004 2
2005 0
2006 3
2007 14
2008 5
2009 2
2010 4
2011 2
2012 8
2013 2
2014 4
2015 4
2016 10
2017 3
2018 5
2019 3
2020 4
2021 3
2022 3
2023 4
2024 3
2025 2
Total 183
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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.

No. of scientists
100 200 300 400 500
Bar chart with 58 bars. Horizontal axis: publications, 38–47 to 603+. Vertical axis: number of scientists, 0 to 557. Most scientists, 557, have 128–137 publications. The last bar groups every scientist with 603 publications or more. The highlighted bar, 168–177 publications, is where this scientist sits. 38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 557 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38–47 publications 603+

This scientist: 169 publications — 49th percentile

49% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

View publications distribution as a table
Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
Publications Scientists This scientist
38–47 5
48–57 33
58–67 94
68–77 161
78–87 278
88–97 376
98–107 404
108–117 484
118–127 540
128–137 557
138–147 491
148–157 495
158–167 458
168–177 490 169
178–187 414
188–197 401
198–207 333
208–217 292
218–227 290
228–237 262
238–247 243
248–257 208
258–267 185
268–277 147
278–287 128
288–297 119
298–307 120
308–317 107
318–327 93
328–337 87
338–347 64
348–357 87
358–367 60
368–377 60
378–387 34
388–397 50
398–407 44
408–417 31
418–427 39
428–437 27
438–447 36
448–457 27
458–467 29
468–477 30
478–487 19
488–497 15
498–507 18
508–517 19
518–527 16
528–537 10
538–547 11
548–557 14
558–567 11
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100
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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.

No. of scientists
100 200 300
Bar chart with 77 bars. Horizontal axis: D-Index, 30 to 106+. Vertical axis: number of scientists, 0 to 389. Most scientists, 389, have 36 D-Index. The last bar groups every scientist with 106 D-Index or more. The highlighted bar, 39 D-Index, is where this scientist sits. 30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 182 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 39 D-Index — 35th percentile

35% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

View D-Index distribution as a table
Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
D-Index Scientists This scientist
30 144
31 215
32 278
33 379
34 366
35 372
36 389
37 366
38 344
39 349 39
40 296
41 289
42 277
43 279
44 248
45 257
46 212
47 202
48 207
49 204
50 183
51 178
52 182
53 178
54 163
55 117
56 163
57 120
58 113
59 136
60 135
61 96
62 103
63 83
64 103
65 83
66 89
67 92
68 89
69 78
70 75
71 53
72 62
73 54
74 35
75 52
76 50
77 32
78 37
79 20
80 33
81 36
82 34
83 34
84 24
85 19
86 18
87 26
88 30
89 17
90 21
91 19
92 15
93 14
94 20
95 9
96 10
97 15
98 13
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98
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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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