World's Best Scientists 2026 revealed!
Jahandar Ramezani

Jahandar Ramezani

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 49 3564 3263 1410 1251 167 9964

Jahandar Ramezani publications per year

The chart shows the history of publications by Jahandar Ramezani between 2000 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Jahandar Ramezani published across 27 years, from 2000 to 2026, averaging 7.5 papers a year. Output peaked at 21 publications in 2016. 22 of the 202 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 2000 to 2026. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2016. 2000: 1 publication 2001: 0 publications 2002: 0 publications 2003: 5 publications 2004: 4 publications 2005: 0 publications 2006: 4 publications 2007: 8 publications 2008: 1 publication 2009: 4 publications 2010: 3 publications 2011: 4 publications 2012: 1 publication 2013: 5 publications 2014: 9 publications 2015: 7 publications 2016: 21 publications 2017: 11 publications 2018: 15 publications 2019: 10 publications 2020: 14 publications 2021: 13 publications 2022: 13 publications 2023: 16 publications 2024: 11 publications 2025: 21 publications 2026: 1 publication
2000 2026

202 publications in total across all disciplines

View publications per year as a table
Jahandar Ramezani: publications per year, 2000 to 2026
Year Publications
2000 1
2001 0
2002 0
2003 5
2004 4
2005 0
2006 4
2007 8
2008 1
2009 4
2010 3
2011 4
2012 1
2013 5
2014 9
2015 7
2016 21
2017 11
2018 15
2019 10
2020 14
2021 13
2022 13
2023 16
2024 11
2025 21
2026 1
Total 202
Download as CSV

Jahandar Ramezani 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 Jahandar Ramezani 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, 158–167 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: 167 publications — 48th percentile

48% 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
158–167 458 167
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
Download as CSV

Jahandar Ramezani 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 Jahandar Ramezani 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, 49 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: 49 D-Index — 62nd percentile

62% 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 49
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
Download as CSV

Overview

Jahandar Ramezani is affiliated with MIT in the United States and specializes in Earth and Planetary Sciences. Their research spans 136 publications primarily focused on paleontology, geophysics, atmospheric science, geology, and artificial intelligence within the broader Earth sciences domain.

The scientist's work concentrates on several main topics including geological and geochemical analysis, paleontology and stratigraphy of fossils, geology and paleoclimatology research, paleontology and evolutionary biology, evolution and paleontology studies, geochemistry and geologic mapping, as well as earthquake and tectonic studies.

Jahandar Ramezani has contributed to numerous scientific papers, some of the notable publications include:

  • High-precision U-Pb age constraints on the Permian floral turnovers, paleoclimate change, and tectonics of the North China block (2021), published in Geology
  • The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations (2020), published in Scientific Reports
  • Progress, problems and prospects: An overview of the Guadalupian Series of South China and North America (2020), published in Earth-Science Reviews
  • Calibrating the zenith of dinosaur diversity in the Campanian of the Western Interior Basin by CA-ID-TIMS U-Pb geochronology (2022), published in Scientific Reports
  • Sustained and intensified lacustrine methane cycling during Early Permian climate warming (2022), published in Nature Communications

Frequent co-authors in their research include Shu-zhong Shen, Qiong Wu, Yichun Zhang, Zhang-shuai Hou, and Douglas H. Erwin. These collaborations highlight interdisciplinary approaches across various subfields linked to paleontology and Earth sciences.

Jahandar Ramezani's publications often appear in venues such as Abstracts with Programs - Geological Society of America, Geological Society of America Bulletin, Earth and Planetary Science Letters, Palaeogeography Palaeoclimatology Palaeoecology, and Scientific Reports. These journals reflect the scientist's engagement with both geological and paleontological research communities.

Best Publications

  • Calibrating the End-Permian Mass Extinction

    Shu-zhong Shen;James L. Crowley;James L. Crowley;Yue Wang;Samuel A. Bowring

  • The Saghand Region, Central Iran: U-Pb geochronology, petrogenesis and implications for Gondwana Tectonics

    Jahandar Ramezani;Robert D. Tucker

  • Extinction of Cloudina and Namacalathus at the Precambrian-Cambrian boundary in Oman

    Joachim E. Amthor;John P. Grotzinger;Stefan Schröder;Samuel A. Bowring

  • Geochronologic constraints on the chronostratigraphic framework of the Neoproterozoic Huqf Supergroup, Sultanate of Oman

    Samuel A Bowring;John P Grotzinger;Daniel J Condon;Jahandar Ramezani

  • Dodging snowballs: Geochronology of the Gaskiers glaciation and the first appearance of the Ediacaran biota

    Judy P. Pu;Judy P. Pu;Samuel A. Bowring;Jahandar Ramezani;Paul Myrow

  • Geochronological constraints on terminal Neoproterozoic events and the rise of Metazoan

    S. Bowring;P. Myrow;E. Landing;J. Ramezani

  • 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

  • High-precision U-Pb zircon geochronology of the Late Triassic Chinle Formation, Petrified Forest National Park (Arizona, USA): Temporal constraints on the early evolution of dinosaurs

    Jahandar Ramezani;Gregory Dean Hoke;David E. Fastovsky;Samuel A. Bowring

  • Coeval Large-Scale Magmatism in the Kalahari and Laurentian Cratons During Rodinia Assembly

    Richard E. Hanson;James L. Crowley;Samuel A. Bowring;Jahandar Ramezani

  • High-precision temporal calibration of Late Permian vertebrate biostratigraphy: U-Pb zircon constraints from the Karoo Supergroup, South Africa

    Bruce S. Rubidge;Douglas H. Erwin;Douglas H. Erwin;Jahandar Ramezani;Samuel A. Bowring

  • U-Pb age constraints on dinosaur rise from south Brazil

    Max C. Langer;Jahandar Ramezani;Átila A.S. Da Rosa

  • Geology and thermochronology of Tertiary Cordilleran-style metamorphic core complexes in the Saghand region of central Iran

    Charles Verdel;Brian P. Wernicke;Jahandar Ramezani;Jamshid Hassanzadeh

  • A sudden end-Permian mass extinction in South China

    Shu-zhong (沈树忠) Shen;Shu-zhong (沈树忠) Shen;Jahandar Ramezani;Jun Chen;Chang-Qun (曹长群) Cao

  • A new giant titanosaur sheds light on body mass evolution among sauropod dinosaurs

    José Luis Carballido;Diego Pol;Alejandro Otero;Ignacio Alejandro Cerda

  • When and how did the terrestrial mid-Permian mass extinction occur? Evidence from the tetrapod record of the Karoo Basin, South Africa.

    Michael O. Day;Jahandar Ramezani;Samuel A. Bowring;Peter M. Sadler

  • High-precision U–Pb geochronology and a new chronostratigraphy for the Cañadón Asfalto Basin, Chubut, central Patagonia: Implications for terrestrial faunal and floral evolution in Jurassic

    Rubén Cúneo;Jahandar Ramezani;Roberto Scasso;Roberto Scasso;Diego Pol

  • Geomorphic evidence for post-10 Ma uplift of the western flank of the central Andes 18°30′ - 22°S

    Gregory D. Hoke;Gregory D. Hoke;Bryan L. Isacks;Teresa E. Jordan;Nicolás Blanco

  • Paleoproterozoic intraplate magmatism and basin development on the Kaapvaal Craton: Age, paleomagnetism and geochemistry of ~1.93 to ~1.87 Ga post-Waterberg dolerites

    R.E. Hanson;W.A. Gose;J.L. Crowley;J. Ramezani

  • 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

  • Constraints on early Cambrian carbon cycling from the duration of the Nemakit-Daldynian–Tommotian boundary δ13C shift, Morocco

    Adam C. Maloof;Jahandar Ramezani;Samuel A. Bowring;David A. Fike

  • U-Pb geochronology of mid-Paleozoic plutonism in western New Zealand: Implications for S-type granite generation and growth of the east Gondwana margin

    A.J. Tulloch;J. Ramezani;D.L. Kimbrough;K. Faure

  • Cretaceous felsic volcanism in New Zealand and Lord Howe Rise (Zealandia) as a precursor to final Gondwana break-up

    A. J. Tulloch;J. Ramezani;N. Mortimer;J. Mortensen

Frequent Co-Authors

Nicholas L. Swanson-Hysell
Nicholas L. Swanson-Hysell University of Minnesota
Douglas H. Erwin
Douglas H. Erwin National Museum of Natural History
James L. Crowley
James L. Crowley Boise State University
Shu-zhong Shen
Shu-zhong Shen Chinese Academy of Sciences
William C. Clyde
William C. Clyde University of New Hampshire
Kirk R. Johnson
Kirk R. Johnson National Museum of Natural History
Adam C. Maloof
Adam C. Maloof Princeton University
Max C. Langer
Max C. Langer Universidade de São Paulo

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

For those interested in expanding their knowledge beyond Earth Science, there are numerous related online degree options that cater to diverse interests and career goals. Seniors looking to re-engage with academics will find valuable information exploring college degrees for seniors, which highlights flexible programs designed to fit mature learners’ lifestyles.

Individuals passionate about information management and research may consider pursuing degrees recognized for their specialization, such as the ala accredited mls programs. These degrees open pathways to careers in libraries, archives, and information centers.

Building on that, a library degree offers a strong foundation for managing digital and physical collections, combining technology with traditional educational skills. This can be a solid complement to Earth Science if you are interested in data curation and scientific information dissemination.

For those drawn to creativity and visualization, pursuing a bachelors in photography online can develop skills in digital imaging and environmental photography, which are valuable in documenting natural phenomena and scientific observations.

Best Scientists Citing Jahandar Ramezani

Trending Scientists

Recently Published Articles