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Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 56 2368 2147 989 874 1107 14103

Spencer G. Lucas publications per year

The chart shows the history of publications by Spencer G. Lucas between 1977 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Spencer G. Lucas published across 49 years, from 1977 to 2025, averaging 25.1 papers a year. Output peaked at 59 publications in 2016. 56 of the 1,232 publications appeared in the last two years.

No. of publications
10 20 30 40 50
Bar chart. Horizontal axis: year, 1977 to 2025. Vertical axis: number of publications, 0 to 59. Peak 59 publications in 2016. 1977: 1 publication 1978: 0 publications 1979: 5 publications 1980: 0 publications 1981: 11 publications 1982: 4 publications 1983: 5 publications 1984: 5 publications 1985: 19 publications 1986: 8 publications 1987: 20 publications 1988: 8 publications 1989: 16 publications 1990: 12 publications 1991: 14 publications 1992: 23 publications 1993: 20 publications 1994: 15 publications 1995: 20 publications 1996: 24 publications 1997: 27 publications 1998: 24 publications 1999: 22 publications 2000: 20 publications 2001: 33 publications 2002: 31 publications 2003: 43 publications 2004: 30 publications 2005: 30 publications 2006: 34 publications 2007: 22 publications 2008: 18 publications 2009: 43 publications 2010: 46 publications 2011: 31 publications 2012: 38 publications 2013: 30 publications 2014: 26 publications 2015: 34 publications 2016: 59 publications 2017: 56 publications 2018: 52 publications 2019: 44 publications 2020: 29 publications 2021: 44 publications 2022: 44 publications 2023: 36 publications 2024: 31 publications 2025: 25 publications
1977 2025

1,232 publications in total across all disciplines

View publications per year as a table
Spencer G. Lucas: publications per year, 1977 to 2025
Year Publications
1977 1
1978 0
1979 5
1980 0
1981 11
1982 4
1983 5
1984 5
1985 19
1986 8
1987 20
1988 8
1989 16
1990 12
1991 14
1992 23
1993 20
1994 15
1995 20
1996 24
1997 27
1998 24
1999 22
2000 20
2001 33
2002 31
2003 43
2004 30
2005 30
2006 34
2007 22
2008 18
2009 43
2010 46
2011 31
2012 38
2013 30
2014 26
2015 34
2016 59
2017 56
2018 52
2019 44
2020 29
2021 44
2022 44
2023 36
2024 31
2025 25
Total 1,232
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Spencer G. Lucas publications per year - data summary

  • Spencer G. Lucas, a Earth Science scholar from New Mexico Museum of Natural History and Science, has 1,232 publications recorded across 49 years, from 1977 to 2025.
  • The oldest publication on record dates to 1977 and the most recent to 2025.
  • The most productive year is 2016, with 59 publications.
  • The least productive year with any output is 1977, with 1 publication.
  • 2 of the 49 years in the span carry no publications at all (1978 and 1980).
  • The rate of publication averages 25.1 papers per year over the whole span, or 26.2 per year counting only the 47 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 180 publications, 15% of the career total.
  • Split into equal eras - 1977-1993: 171 publications (10.1 per year); 1994-2010: 482 publications (28.4 per year); 2011-2025: 579 publications (38.6 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Spencer G. Lucas 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 Spencer G. Lucas 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, 603+ 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: 1,107 publications — 100th percentile

100% 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
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 1,107
Download as CSV

Spencer G. Lucas publication distribution in Earth Science in 2026 - data summary

  • The chart plots the publication count of all 9,176 Earth Science scientists ranked by Research.com in 2026, grouped into 58 ranges running from 38–47 to 603+ publications.
  • Spencer G. Lucas, a Earth Science scholar from New Mexico Museum of Natural History and Science, records 1,107 publications - the 100th percentile of the discipline.
  • 100% of ranked Earth Science scientists score the same or lower than Spencer G. Lucas, and about 0% score higher.
  • The median of the discipline falls in the 168–177 publications range, and Spencer G. Lucas ranks above the median.
  • The most crowded range is 128–137 publications, holding 557 scientists (6% of the field).
  • 58% of the field sits in the lowest quarter of the value range (up to 178–187 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 603 publications or more, 100 scientists in all (1% of the field).

Spencer G. Lucas 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 Spencer G. Lucas 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, 56 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: 56 D-Index — 75th percentile

75% 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
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 56
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
Download as CSV

Spencer G. Lucas D-index placement in Earth Science in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 9,176 Earth Science scientists ranked by Research.com in 2026, grouped into 77 ranges running from 30 to 106+ D-Index.
  • Spencer G. Lucas, a Earth Science scholar from New Mexico Museum of Natural History and Science, records 56 D-Index - the 75th percentile of the discipline.
  • 75% of ranked Earth Science scientists score the same or lower than Spencer G. Lucas, and about 25% score higher.
  • The median of the discipline falls in the 44 D-Index range, and Spencer G. Lucas ranks above the median.
  • The most crowded range is 36 D-Index, holding 389 scientists (4% of the field).
  • 62% of the field sits in the lowest quarter of the value range (up to 49 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 106 D-Index or more, 98 scientists in all (1% of the field).

Overview

Spencer G. Lucas is affiliated with the New Mexico Museum of Natural History and Science in the United States. Their primary field of study is Earth and Planetary Sciences, with a focus on paleontology. They have authored 294 publications in this field, including significant contributions to subfields such as Paleontology, Nature and Landscape Conservation, Atmospheric Science, Earth-Surface Processes, and Ecology, Evolution, Behavior and Systematics.

The main topics covered in their work encompass Paleontology and Evolutionary Biology, Evolution and Paleontology Studies, Paleontology and Stratigraphy of Fossils, Geology and Paleoclimatology Research, Geological formations and processes, Ichthyology and Marine Biology, and Geological and Geochemical Analysis.

Spencer G. Lucas has published research papers in various academic journals and venues. Notable papers include:

  • The Late Triassic Extinction at the Norian/Rhaetian boundary: Biotic evidence and geochemical signature (2020, Earth-Science Reviews)
  • The Artinskian Warming Event: an Euramerican change in climate and the terrestrial biota during the early Permian (2022, Earth-Science Reviews)
  • Uplands, lowlands, and climate: Taphonomic megabiases and the apparent rise of a xeromorphic, drought-tolerant flora during the Pennsylvanian-Permian transition (2020, Palaeogeography Palaeoclimatology Palaeoecology)
  • The environmental implications of upper Paleozoic plant-fossil assemblages with mixtures of wetland and drought-tolerant taxa in tropical Pangea (2021, Geobios)
  • Transition from Late Jurassic rifting to middle Cretaceous dynamic foreland, southwestern U.S. and northwestern Mexico (2020, Geological Society of America Bulletin)

Frequent co-authors collaborating with Spencer G. Lucas include Adrian P. Hunt, Ashu Khosla, William A. DiMichele, Omkar Verma, and Hendrik Klein.

Key venues where they have published regularly include the Proceedings volume of the annual spring meeting, Geological Society London Special Publications, Historical Biology, Abstracts with programs - Geological Society of America, and New Mexico Geology.

Their book publications primarily appear through Springer Nature, Columbia University Press, and Dialética eBooks. Notable books include "Microbiota from the Late Cretaceous-Early Palaeocene Boundary Transition in the Deccan Intertrappean Beds of Central India" (2023), "Late Cretaceous Dinosaur Eggs and Eggshells of Peninsular India" (2020), "Dinosaurs" (2022), and "UFMG Pesquisa Egressos: volume II" (2024).

Best Publications

  • Assessing the record and causes of Late Triassic extinctions

    L.H. Tanner;S.G. Lucas;M.G. Chapman

  • Tetrapod Ichnofacies: A New Paradigm

    Adrian P. Hunt;Spencer G. Lucas

  • Late Paleozoic–early Mesozoic continental biostratigraphy — Links to the Standard Global Chronostratigraphic Scale

    Joerg W. Schneider;Joerg W. Schneider;Spencer G. Lucas;Frank Scholze;Sebastian Voigt

  • Adelobasileus from the Upper Triassic of West Texas: the oldest mammal

    Spencer G. Lucas;Zhexi Luo

  • Global Permian tetrapod biostratigraphy and biochronology

    Unknown

  • Stratigraphy, biostratigraphy and C-isotopes of the Permian–Triassic non-marine sequence at Dalongkou and Lucaogou, Xinjiang Province, China

    Ian Metcalfe;C B Foster;S.A. Afonin;Robert Nicoll

  • Late Triassic dinosaursfrom the western United States

    Adrian P. Hunt;Spencer G. Lucas;Andrew B. Heckert;Robert M. Sullivan

  • A new aetosaur (Reptilia: Archosauria) from the Upper Triassic of Texas and the phylogeny of aetosaurs

    Andrew B. Heckert;Spencer G. Lucas

  • Alamosaurus and the sauropod hiatus in the Cretaceous of the North American Western Interior

    Spencer G. Lucas;Adrian P. Hunt

  • Triassic ammonoid biostratigraphy: an overview

    Unknown

  • Palaeoecology of an Early Permian playa lake trace fossil assemblage from Castle Peak, Texas, USA

    Nicholas J. Minter;Karl Krainer;Spencer G. Lucas;Simon J. Braddy

  • THE KIRTLANDIAN LAND-VERTEBRATE "AGE"—FAUNAL COMPOSITION, TEMPORAL POSITION AND BIOSTRATIGRAPHIC CORRELATION IN THE NONMARINE UPPER CRETACEOUS OF WESTERN NORTH AMERICA

    Robert M. Sullivan;Spencer G. Lucas

  • The Chuska erg: Paleogeomorphic and paleoclimatic implications of an Oligocene sand sea on the Colorado Plateau

    Steven M. Cather;Sean D. Connell;Richard M. Chamberlin;William C. McIntosh

  • Selachians from the Greenhorn Cyclothem ("Middle" Cretaceous: Cenomanian-Turonian), Black Mesa, Arizona, and the Paleogeographic Distribution of Late Cretaceous Selachians

    Thomas E. Williamson;James I. Kirkland;Spencer G. Lucas

  • Tetrapod footprints – their use in biostratigraphy and biochronology of the Triassic

    Hendrik Klein;Spencer G. Lucas

  • Tetrapod biostratigraphy and biochronology of the Triassic-Jurassic transition on the southern Colorado Plateau, USA

    Spencer G. Lucas;Lawrence H. Tanner

  • The Late Triassic timescale: Age and correlation of the Carnian–Norian boundary

    Unknown

  • A thin-shelled reptile from the Late Triassic of North America and the origin of the turtle shell

    Walter G Joyce;Spencer G Lucas;Torsten M Scheyer;Andrew B Heckert

  • Non-Marine Permian Biostratigraphy and Biochronology

    Spencer G. Lucas;Giuseppe Cassinis;Joerg W. Schneider

  • The nonmarine Triassic–Jurassic boundary in the Newark Supergroup of eastern North America

    S.G. Lucas;L.H. Tanner

  • Triassic temnospondyl biostratigraphy, biochronology and correlation of the German Buntsandstein and North American Moenkopi Formation

    Spencer G. Lucas;Rainer R. Schoch

  • Timing and magnitude of tetrapod extinctions across the Permo-Triassic boundary

    Spencer G. Lucas

  • SELACHIANS FROM THE GREENHORN CYCLOTHEM ("MIDDLE" CRETACEOUS: CENOMANIAN-TURONIAN),

    Thomas E. Williamson;James I. Kirkland;Spencer G. Lucas

Frequent Co-Authors

William A. DiMichele
William A. DiMichele Smithsonian Institution
Karl Krainer
Karl Krainer University of Innsbruck
Martin G. Lockley
Martin G. Lockley University of Colorado Denver
Guillermo E. Alvarado
Guillermo E. Alvarado University of Costa Rica
Howard J. Falcon-Lang
Howard J. Falcon-Lang Royal Holloway University of London
Hans Kerp
Hans Kerp University of Münster
Daniel Vachard
Daniel Vachard University of Lille
Cindy V. Looy
Cindy V. Looy University of California, Berkeley
John W. Geissman
John W. Geissman The University of Texas at Dallas
Shu-zhong Shen
Shu-zhong Shen Chinese Academy of Sciences

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