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Daniel Vachard

Daniel Vachard

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 35 7528 6968 592 565 300 5582

Daniel Vachard publications per year

The chart shows the history of publications by Daniel Vachard between 1977 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Daniel Vachard published across 49 years, from 1977 to 2025, averaging 6.3 papers a year. Output peaked at 24 publications in 2015. 6 of the 309 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1977 to 2025. Vertical axis: number of publications, 0 to 24. Peak 24 publications in 2015. 1977: 1 publication 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 1 publication 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 2 publications 1988: 2 publications 1989: 5 publications 1990: 3 publications 1991: 5 publications 1992: 1 publication 1993: 6 publications 1994: 5 publications 1995: 3 publications 1996: 5 publications 1997: 8 publications 1998: 12 publications 1999: 6 publications 2000: 8 publications 2001: 15 publications 2002: 7 publications 2003: 9 publications 2004: 9 publications 2005: 10 publications 2006: 8 publications 2007: 9 publications 2008: 12 publications 2009: 6 publications 2010: 7 publications 2011: 6 publications 2012: 6 publications 2013: 13 publications 2014: 13 publications 2015: 24 publications 2016: 14 publications 2017: 17 publications 2018: 6 publications 2019: 8 publications 2020: 11 publications 2021: 7 publications 2022: 8 publications 2023: 5 publications 2024: 5 publications 2025: 1 publication
1977 2025

309 publications in total across all disciplines

View publications per year as a table
Daniel Vachard: publications per year, 1977 to 2025
Year Publications
1977 1
1978 0
1979 0
1980 0
1981 0
1982 1
1983 0
1984 0
1985 0
1986 0
1987 2
1988 2
1989 5
1990 3
1991 5
1992 1
1993 6
1994 5
1995 3
1996 5
1997 8
1998 12
1999 6
2000 8
2001 15
2002 7
2003 9
2004 9
2005 10
2006 8
2007 9
2008 12
2009 6
2010 7
2011 6
2012 6
2013 13
2014 13
2015 24
2016 14
2017 17
2018 6
2019 8
2020 11
2021 7
2022 8
2023 5
2024 5
2025 1
Total 309
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Daniel Vachard 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 Daniel Vachard 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, 298–307 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: 300 publications — 86th percentile

86% 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
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
298–307 120 300
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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Daniel Vachard 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 Daniel Vachard 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, 35 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: 35 D-Index — 19th percentile

19% 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 35
36 389
37 366
38 344
39 349
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

Daniel Vachard is affiliated with the University of Lille in France and specializes in Earth and Planetary Sciences, with a significant focus on paleontology. Their research portfolio includes over 80 publications in this domain, with notable contributions to subfields such as Paleontology, Atmospheric Science, Geophysics, Earth-Surface Processes, and Geology.

The scientist's research themes encompass a broad range of topics within Earth sciences. Key areas of work include Paleontology and Stratigraphy of Fossils, Geology and Paleoclimatology Research, Geological and Geochemical Analysis, Geological formations and processes, Geological and Geophysical Studies Worldwide, Evolution and Paleontology Studies, and Geological and Geophysical Studies.

Recent publications demonstrate an emphasis on both paleobiogeographic and stratigraphic studies, primarily related to the Carboniferous period and analogous geologic contexts. Some recent papers include:

  • Lower-middle Viséan transgressive carbonates in Morocco: Palaeobiogeographic insights (2020, Journal of African Earth Sciences)
  • Refined foraminiferal biostratigraphy of upper Wordian, Capitanian, and Wuchiapingian strata in Hambast Valley, Abadeh region (Iran), and paleobiogeographic implications (2020, Geological Journal)
  • Carboniferous smaller Foraminifera: convergences and divergences (2020, Geological Society London Special Publications)
  • The Pennsylvanian System in the Sacramento Mountains, New Mexico, USA (2021, Smithsonian contributions to paleobiology)
  • Contrasting reef patterns during the evolution of the carboniferous azrou-khenifra basin (Moroccan Meseta) (2022, Facies)

Frequent collaboration is a feature of this scientist's work. Regular co-authors include Ismael Coronado, Pedro Cózar, Alain Izart, Ian D. Somerville, and Spencer G. Lucas.

The venues where publications appear most frequently include Facies, Journal of Asian Earth Sciences, Geobios, Carnets de géologie (Notebooks on geology), and Journal of African Earth Sciences. These journals reflect the scientist's focus on integrating paleontological data with geological and stratigraphic frameworks across various geographic regions.

Best Publications

  • Large colonial organisms with coordinated growth in oxygenated environments 2.1 Gyr ago.

    Abderrazak El Albani;Stefan Bengtson;Donald E. Canfield;Andrey Bekker

  • Palaeozoic Foraminifera: Systematics, palaeoecology and responses to global changes

    Daniel Vachard;Lucie Pille;Jérémie Gaillot

  • The Khuff Formation (Middle East) and time-equivalents in Turkey and South China: biostratigraphy from Capitanian to Changhsingian times (Permian), new foraminiferal taxa, and palaeogeographical implications

    Jérémie Gaillot;Daniel Vachard

  • The Permian-Triassic Khuff Formation of central Saudi Arabia

    Denis Vaslet;Yves-Michel Le Nindre;Daniel Vachard;Jean Broutin

  • From rift to drift in South Pamir (Tajikistan): Permian evolution of a Cimmerian terrane

    L. Angiolini;A. Zanchi;S. Zanchetta;A. Nicora

  • Sequence stratigraphy and correlation of late Carboniferous and Permian in the CIS, Europe, Tethyan area, North Africa, Arabia, China, Gondwanaland and the USA

    Alain Izart;Randell Stephenson;Gian Battista Vai;Daniel Vachard

  • Stratigraphy and sequence stratigraphy of the Moscovian in the Donets basin

    A. Izart;C. Briand;D. Vaslet;D. Vachard

  • Palaeozoic Reefs and Bioaccumulations: Climatic and Evolutionary Controls

    José Javier Álvaro;Markus Aretz;Frédéric Boulvain;Axel Munnecke

  • New algae and problematica of algal affinity from the Permian of the Aseelah Unit of the Batain Plain (East Oman)

    D. Vachard;M. Hauser;A. Matter;T. Peters

  • Foraminifers and algae from the Khuff Formation (late Middle Permian-Early Triassic) of central Saudi Arabia

    Daniel Vachard;Jérémie Gaillot;Denis Vaslet;Yves-Michel Le Nindre

  • Foraminifers and conodonts from the late Viséan to early Bashkirian succession in the Saharan Tindouf Basin (southern Morocco): biostratigraphic refinements and implications for correlations in the western Palaeotethys

    P. Cózar;P. Medina-Varea;I. D. Somerville;D. Vachard

  • Late Viséan–Serpukhovian foraminiferans and calcareous algae from the Adarouch region (central Morocco), North Africa

    P. Cózar;D. Vachard;I. D. Somerville;M. Berkhli

  • NEW SEM OBSERVATIONS OF KERIOTHECAL WALLS: IMPLICATIONS FOR THE EVOLUTION OF FUSULINIDA

    Daniel Vachard;Axel Munnecke;Thomas Servais

  • Potential Foraminiferal Markers for the Visean–Serpukhovian and Serpukhovian–Bashkirian Boundaries—a Case-Study from Central Morocco

    Pedro Cózar;Ismail Said;Ian D. Somerville;Daniel Vachard

  • MIDDLE PERMIAN (MIDIAN) FORAMINIFERAL ASSEMBLAGES FROM THE BATAIN PLAIN (EASTERN OMAN): THEIR SIGNIFICANCE TO NEOTETHYAN PALEOGEOGRAPHY

    Daniel Vachard;Marc Hauser;Rossana Martini;Louisette Zaninetti

  • Precise age and biostratigraphic significance of the Kinney Brick Quarry Lagerstätte, Pennsylvanian of New Mexico, USA

    Spencer G. Lucas;Bruce D. Allen;Karl Krainer;James Barrick

  • SMALLER FORAMINIFERS, CHARACTERISTIC ALGAE AND PSEUDO-ALGAE OF THE LATEST CARBONIFEROUS-EARLY PERMIAN RATTENDORF GROUP,CARNIC ALPS (AUSTRIA/ITALY)

    Daniel Vachard;Karl Krainer

  • Discovery of Triassic fossils at Bukit Chuping, in Gunung Sinyum area, and at Kota Jin, Peninsular Malaysia

    Henri Fontaine;Han Peng Khoo;Daniel Vachard

  • Biostratigraphie par fusulines des calcaires carbonifères et permiens de San Salvador Patlanoaya (Puebla, Mexique)

    Daniel Vachard;Antonio Flores de Dios;Blanca Estela Buitrón;Manuel Grajales

  • A DISCUSSION AND PROPOSAL CONCERNING THE USE OF THE TERM CALCISPHERES

    Gerard J. M. Versteegh;Gerard J. M. Versteegh;Thomas Servais;Michael Streng;Axel Munnecke

  • Chronostratigraphic and palaeogeographic significance of an early Cambrian microfauna from the Heraultia Limestone, northern Montagne Noire, France

    Léa Devaere;Sébastien Clausen;Michael Steiner;J. Javier Álvaro

  • Upper Famennian to Visean Foraminifers and some carbonate Microproblematica from South China

    Luc Hance;Hongfei Hou;Daniel Vachard;Francois Xavier Devuyst

Frequent Co-Authors

Karl Krainer
Karl Krainer University of Innsbruck
Ian D. Somerville
Ian D. Somerville University College Dublin
Spencer G. Lucas
Spencer G. Lucas New Mexico Museum of Natural History and Science
Axel Munnecke
Axel Munnecke University of Erlangen-Nuremberg
Lucia Angiolini
Lucia Angiolini University of Milan
Thomas Servais
Thomas Servais University of Lille
Maurice Streel
Maurice Streel University of Liège
Andrea Zanchi
Andrea Zanchi University of Milano-Bicocca
Gérard M. Stampfli
Gérard M. Stampfli University of Lausanne
William A. DiMichele
William A. DiMichele Smithsonian Institution

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