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D-Index & Metrics

Environmental Sciences

D-Index
41
Citations
6338
World Ranking
7726
National Ranking
179

Walter G. Joyce publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Walter G. Joyce sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 126 publications — 28th percentile

28% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Walter G. Joyce D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Walter G. Joyce sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 41 D-Index — 22nd percentile

22% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Walter G. Joyce is a researcher affiliated with the University of Fribourg in Switzerland. Their work primarily focuses on paleontology and environmental sciences, with a specialization in the study of turtles and evolutionary biology.

The scientist's research spans several main fields of study including:

  • Earth and Planetary Sciences
  • Environmental Science

Their subfields of study cover:

  • Paleontology
  • Nature and Landscape Conservation
  • Global and Planetary Change
  • Ecology, Evolution, Behavior and Systematics
  • Developmental Biology

Research topics commonly addressed in their publications include:

  • Paleontology and Evolutionary Biology
  • Turtle Biology and Conservation
  • Evolution and Paleontology Studies
  • Ichthyology and Marine Biology
  • Amphibian and Reptile Biology
  • Animal Behavior and Reproduction
  • Animal Vocal Communication and Behavior

Frequent co-authors associated with their work are:

  • Serjoscha Evers
  • Yann Rollot
  • Tyler R. Lyson
  • Léa C. Girard
  • Christian Foth

Publications by Walter G. Joyce appear mainly in the following venues:

  • Swiss Journal of Palaeontology
  • PeerJ
  • Fossil record
  • The Anatomical Record
  • MorphoBank datasets

Among their recent papers are:

  • "A nomenclature for fossil and living turtles using phylogenetically defined clade names," 2021, Swiss Journal of Palaeontology
  • "A review of the carotid artery and facial nerve canal systems in extant turtles," 2021, PeerJ
  • "Cranial osteology of the Early Cretaceous turtle Pleurosternon bullockii (Paracryptodira: Pleurosternidae)," 2020, PeerJ
  • "Independent origin of large labyrinth size in turtles," 2022, Nature Communications
  • "A redescription of the Late Jurassic (Tithonian) turtle Uluops uluops and a new phylogenetic hypothesis of Paracryptodira," 2021, Swiss Journal of Palaeontology

Best Publications

  • Best practices for justifying fossil calibrations

    James F. Parham;James F. Parham;James F. Parham;Philip C. J. Donoghue;Christopher J. Bell;Tyler D. Calway

  • DEVELOPING A PROTOCOL FOR THE CONVERSION OF RANK-BASED TAXON NAMES TO PHYLOGENETICALLY DEFINED CLADE NAMES, AS EXEMPLIFIED BY TURTLES

    Walter G. Joyce;James F. Parham;Jacques Armand Gauthier

  • Phylogenetic Relationships of Mesozoic Turtles

    Walter G. Joyce

  • Palaeoecology of triassic stem turtles sheds new light on turtle origins

    Walter G. Joyce;Jacques A. Gauthier;Jacques A. Gauthier

  • Calibration uncertainty in molecular dating analyses: there is no substitute for the prior evaluation of time priors

    Rachel C. M. Warnock;James F. Parham;Walter G. Joyce;Tyler R. Lyson

  • Transitional Fossils and the Origin of Turtles

    Tyler R. Lyson;Gabe S. Bever;Bhart Anjan S. Bhullar;Walter G. Joyce

  • A Divergence Dating Analysis of Turtles Using Fossil Calibrations: An Example of Best Practices

    Walter G. Joyce;Walter G. Joyce;James F. Parham;Tyler R. Lyson;Tyler R. Lyson;Rachel C. M. Warnock;Rachel C. M. Warnock

  • A nomenclature for fossil and living turtles using phylogenetically defined clade names

    Walter G. Joyce;Jérémy Anquetin;Edwin Alberto Cadena;Julien Claude

  • A plywood structure in the shell of fossil and living soft-shelled turtles (Trionychidae) and its evolutionary implications

    Torsten M. Scheyer;P. Martin Sander;Walter G. Joyce;Wolfgang Böhme

  • A toothed turtle from the Late Jurassic of China and the global biogeographic history of turtles.

    Walter G. Joyce;Márton Rabi;Márton Rabi;James M. Clark;Xing Xu

  • A new xinjiangchelyid turtle from the Middle Jurassic of Xinjiang, China and the evolution of the basipterygoid process in Mesozoic turtles

    Márton Rabi;Márton Rabi;Chang-Fu Zhou;Oliver Wings;Sun Ge

  • 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

  • A Review of the Fossil Record of Basal Mesozoic Turtles

    Walter G. Joyce

  • The Bipedal Stem Crocodilian Poposaurus gracilis: Inferring Function in Fossils and Innovation in Archosaur Locomotion

    Jacques A. Gauthier;Sterling J. Nesbitt;Emma R. Schachner;Gabe S. Bever

  • THE FIRST COMPLETE SKELETON OF SOLNHOFIA PARSONSI (CRYPTODIRA, EURYSTERNIDAE) FROM THE UPPER JURASSIC OF GERMANY AND ITS TAXONOMIC IMPLICATIONS

    Walter G. Joyce

  • A NEW TURTLE FROM THE ARUNDEL CLAY FACIES (POTOMAC FORMATION, EARLY CRETACEOUS) OF MARYLAND, U.S.A.

    Thomas R. Lipka;François Therrien;David B. Weishampel;Heather A. Jamniczky

  • The cranial anatomy of the Early Jurassic turtle Kayentachelys aprix

    J Sterli;W G Joyce

  • A Review of the Fossil Record of Old World Turtles of the Clade Pan-Trionychidae

    Georgios L. Georgalis;Walter G. Joyce

  • Osteology, Relationships, and Ecology of Annemys (Testudines, Eucryptodira) from the Late Jurassic of Shar Teg, Mongolia, and Phylogenetic Definitions for Xinjiangchelyidae, Sinemydidae, and Macrobaenidae

    Márton Rabi;Vladimir B. Sukhanov;Vera N. Egorova;Igor Danilov

  • A Review of the Fossil Record of New World Turtles of the Clade Pan-Trionychidae

    Natasha S. Vitek;Walter G. Joyce

  • The origin of turtles: A paleontological perspective

    Walter G. Joyce

  • A Review of the Fossil Record of Turtles of the Clade Baenidae

    Walter G. Joyce;Tyler R. Lyson

Frequent Co-Authors

James F. Parham
James F. Parham California State University, Fullerton
Michael J. Benton
Michael J. Benton University of Bristol
Philip C. J. Donoghue
Philip C. J. Donoghue University of Bristol
Madelaine Böhme
Madelaine Böhme University of Tübingen
Randall B. Irmis
Randall B. Irmis University of Utah
Maria A. Gandolfo
Maria A. Gandolfo Cornell University
Donald B. Brinkman
Donald B. Brinkman University of Alberta
David W. Krause
David W. Krause Stony Brook University
Mark A. Norell
Mark A. Norell American Museum of Natural History
Ziheng Yang
Ziheng Yang University College London

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