Project 4581: K. Poole. 2022. Phylogeny of iguanodontian dinosaurs and the evolution of quadrupedality. Palaeontologia electronica. 25 (3):1-65.
Abstract
Iguanodontians are a large and biogeographically widespread group of dinosaurs, known from every modern continent, with a temporal range from the Late Jurassic through the Late Cretaceous. While the nested hadrosauroids have been studied extensively, the phylogeny of non-hadrosauroid iguanodontians remains less clear. This study presents a character matrix with 323 characters, and both parsimony and time-calibrated Bayesian analyses. While these result in different topologies, they both recover a Thescelosauridae outside of Iguanodontia. Within Iguanodontia, they both recover Muttaburrasaurus and Tenontosaurus as sister taxa to Rhabdodontidae, with a larger group of Gondwanan Rhabdodontoidea (nomen cladi novum) in the Bayesian analysis. A small Dryosauridae forms the sister group to Ankylopollexia, which has Uteodon and Camptosaurus as the most basally branching taxa. Within Styracosterna two distinct clades are recovered: Iguanodontidae, and a group of taxa with robust forelimbs. The holotype of Mantellisaurus is sister to “Dollodon”, supporting the hypothesis that these taxa are synonymous.The “hatchet-shaped” sternal thought to be a synapomorphy of Styracosterna occurs in two taxa recovered outside that group: Macrogryphosaurus and the unnamed taxon from the Kirkwood Formation of South Africa. Characters associated with quadrupedality are mapped on the phylogeny, indicating a transition from bipedality to quadrupedality occurred in a stepwise manner at the base of Ankylopollexia. Based on synapomorphies of the groups, the major innovations in Ankylopollexia were postcranial, while those of hadrosauroids were centered on dentition and the dentaries. There is a clear faunal succession from the Late Jurassic to Early Cretaceous non-hadrosauroid ankylopollexians to the Late Cretaceous hadrosauroids.Read the article »
Article DOI: 10.26879/702
Project DOI: 10.7934/P4581, http://dx.doi.org/10.7934/P4581
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 11520 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 323 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 706 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:323/0 |
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MorphoBank Project 4581
MorphoBank Project 4581
- Creation Date:
03 March 2023 - Publication Date:
14 March 2023 - Project views: 5742
- Matrix downloads: 31
Authors' Institutions
- New York Institute of Technology
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
MorphoBank Curator Project Administrator | 0 | 5 | 5 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | ||||
Karen Poole Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29192' (72 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Eocursor Last Modified in 03/14/23 | 239 | 68 | 68 | 0 | 16 | 0 | 0 | 2 |
[2] † Lesothosaurus Last Modified in 03/14/23 | 122 | 177 | 177 | 0 | 24 | 0 | 0 | 2 |
[3] † Stormbergia Last Modified in 03/14/23 | 232 | 89 | 87 | 0 | 4 | 0 | 0 | 2 |
[4] † Agilisaurus Last Modified in 03/14/23 | 119 | 185 | 185 | 0 | 19 | 0 | 0 | 2 |
[5] † Hexinlusaurus Last Modified in 03/14/23 | 152 | 165 | 164 | 0 | 7 | 0 | 0 | 2 |
[6] † Shishugou taxon Last Modified in 03/14/23 | 61 | 239 | 238 | 0 | 24 | 0 | 0 | 2 |
[7] † Othnielosaurus Last Modified in 03/14/23 | 203 | 111 | 111 | 0 | 9 | 0 | 0 | 2 |
[8] † Hypsilophodon Last Modified in 03/14/23 | 24 | 293 | 285 | 0 | 14 | 0 | 0 | 2 |
[9] † Jeholosaurus Last Modified in 03/14/23 | 91 | 218 | 216 | 0 | 16 | 0 | 0 | 2 |
[10] † Haya Last Modified in 03/14/23 | 69 | 232 | 232 | 0 | 22 | 0 | 0 | 2 |
[11] † Orodromeus Last Modified in 03/14/23 | 63 | 248 | 242 | 0 | 18 | 0 | 0 | 2 |
[12] † Oryctodromeus Last Modified in 03/14/23 | 265 | 57 | 56 | 0 | 2 | 0 | 0 | 2 |
[13] † Zephyrosaurus Last Modified in 03/14/23 | 247 | 74 | 74 | 0 | 2 | 0 | 0 | 2 |
[14] † Thescelosaurus infernalis Last Modified in 03/14/23 | 130 | 179 | 177 | 0 | 16 | 0 | 0 | 2 |
[15] † Thescelosaurus neglectus Last Modified in 03/14/23 | 53 | 256 | 255 | 0 | 15 | 0 | 0 | 2 |
[16] † Parksosaurus Last Modified in 03/14/23 | 177 | 135 | 135 | 0 | 11 | 0 | 0 | 2 |
[17] † Leaellynasaura Last Modified in 03/14/23 | 224 | 94 | 94 | 0 | 5 | 0 | 0 | 2 |
[18] † Gasparinisaura Last Modified in 03/14/23 | 107 | 205 | 204 | 0 | 12 | 0 | 0 | 2 |
[19] † Anabisetia Last Modified in 03/14/23 | 169 | 145 | 145 | 0 | 9 | 0 | 0 | 2 |
[20] † Macrogryphosaurus Last Modified in 03/14/23 | 264 | 56 | 56 | 0 | 3 | 0 | 0 | 2 |
[21] † Trinisaura Last Modified in 03/14/23 | 278 | 43 | 43 | 0 | 2 | 0 | 0 | 2 |
[22] † Talenkauen Last Modified in 03/14/23 | 167 | 151 | 149 | 0 | 7 | 0 | 0 | 2 |
[23] † Tenontosaurus dossi Last Modified in 03/14/23 | 109 | 202 | 201 | 0 | 13 | 0 | 0 | 2 |
[24] † Tenontosaurus tilletti Last Modified in 03/14/23 | 20 | 292 | 283 | 0 | 20 | 0 | 0 | 2 |
[25] † Muttaburrasaurus Last Modified in 03/14/23 | 178 | 142 | 141 | 0 | 4 | 0 | 0 | 2 |
[26] † Atlascopcosaurus Last Modified in 03/14/23 | 284 | 38 | 37 | 0 | 2 | 0 | 0 | 2 |
[27] † Kangnasaurus Last Modified in 03/14/23 | 287 | 36 | 36 | 0 | 0 | 0 | 0 | 2 |
[28] † Dryosaurus Last Modified in 03/14/23 | 35 | 276 | 273 | 0 | 15 | 0 | 0 | 2 |
[29] † Dysalotosaurus Last Modified in 03/14/23 | 36 | 281 | 273 | 0 | 14 | 0 | 0 | 2 |
[30] † Kirkwood taxon Last Modified in 03/14/23 | 173 | 144 | 142 | 0 | 8 | 0 | 0 | 2 |
[31] † Valdosaurus Last Modified in 03/14/23 | 262 | 58 | 57 | 0 | 4 | 0 | 0 | 2 |
[32] † Rhabdodon Last Modified in 03/14/23 | 124 | 198 | 186 | 0 | 13 | 0 | 0 | 2 |
[33] † Zalmoxes robustus Last Modified in 03/14/23 | 91 | 226 | 220 | 0 | 12 | 0 | 0 | 2 |
[34] † Zalmoxes shqiperorum Last Modified in 03/14/23 | 235 | 86 | 85 | 0 | 3 | 0 | 0 | 2 |
[35] † Cumnoria prestwichii Last Modified in 03/14/23 | 207 | 111 | 111 | 0 | 5 | 0 | 0 | 2 |
[36] † Owenodon Last Modified in 03/14/23 | 287 | 34 | 34 | 0 | 2 | 0 | 0 | 2 |
[37] † Uteodon Last Modified in 03/14/23 | 175 | 145 | 144 | 0 | 4 | 0 | 0 | 2 |
[38] † Camptosaurus Last Modified in 03/14/23 | 31 | 288 | 280 | 0 | 12 | 0 | 0 | 2 |
[39] † Lurdusaurus Last Modified in 03/14/23 | 169 | 150 | 149 | 0 | 5 | 0 | 0 | 2 |
[40] † Theiophytalia Last Modified in 03/14/23 | 252 | 67 | 67 | 0 | 4 | 0 | 0 | 2 |
[41] † Dakotadon Last Modified in 03/14/23 | 224 | 95 | 94 | 0 | 5 | 0 | 0 | 2 |
[42] † Cedrorestes Last Modified in 03/14/23 | 297 | 26 | 26 | 0 | 0 | 0 | 0 | 2 |
[43] † Planicoxa Last Modified in 03/14/23 | 267 | 57 | 56 | 0 | 0 | 0 | 0 | 2 |
[44] † Hippodraco Last Modified in 03/14/23 | 236 | 88 | 87 | 0 | 0 | 0 | 0 | 2 |
[45] † Iguanacolossus Last Modified in 03/14/23 | 255 | 61 | 60 | 0 | 8 | 0 | 0 | 2 |
[46] † Lanzhousaurus Last Modified in 03/14/23 | 253 | 67 | 67 | 0 | 3 | 0 | 0 | 2 |
[47] † Barilium Last Modified in 03/14/23 | 221 | 101 | 101 | 0 | 1 | 0 | 0 | 2 |
[48] † Hypselospinus Last Modified in 03/14/23 | 208 | 116 | 114 | 0 | 1 | 0 | 0 | 2 |
[49] † Mantellisaurus Last Modified in 03/14/23 | 20 | 302 | 297 | 0 | 6 | 0 | 0 | 2 |
[50] † Iguanodon Last Modified in 03/14/23 | 18 | 304 | 298 | 0 | 7 | 0 | 0 | 2 |
[51] † Ouranosaurus Last Modified in 03/14/23 | 53 | 266 | 265 | 0 | 5 | 0 | 0 | 2 |
[52] † Proa Last Modified in 03/14/23 | 195 | 121 | 120 | 0 | 8 | 0 | 0 | 2 |
[53] † Altirhinus Last Modified in 03/14/23 | 120 | 191 | 190 | 0 | 13 | 0 | 0 | 2 |
[54] † Xuwulong Last Modified in 03/14/23 | 186 | 133 | 133 | 0 | 4 | 0 | 0 | 2 |
[55] † Jeyawati Last Modified in 03/14/23 | 262 | 61 | 61 | 0 | 0 | 0 | 0 | 2 |
[56] † Equijubus Last Modified in 03/14/23 | 180 | 137 | 137 | 0 | 6 | 0 | 0 | 2 |
[57] † Fukuisaurus Last Modified in 03/14/23 | 242 | 77 | 77 | 0 | 4 | 0 | 0 | 2 |
[58] † Bolong Last Modified in 03/14/23 | 176 | 139 | 138 | 0 | 9 | 0 | 0 | 2 |
[59] † Jinzhousaurus Last Modified in 03/14/23 | 108 | 205 | 205 | 0 | 10 | 0 | 0 | 2 |
[60] † Batyrosaurus Last Modified in 03/14/23 | 241 | 80 | 77 | 0 | 5 | 0 | 0 | 2 |
[61] † Probactrosaurus Last Modified in 03/14/23 | 122 | 197 | 195 | 0 | 6 | 0 | 0 | 2 |
[62] † Eolambia Last Modified in 03/14/23 | 85 | 232 | 228 | 0 | 10 | 0 | 0 | 2 |
[63] † Protohadros Last Modified in 03/14/23 | 166 | 147 | 147 | 0 | 10 | 0 | 0 | 2 |
[64] † Shuangmiaosaurus Last Modified in 03/14/23 | 282 | 37 | 37 | 0 | 4 | 0 | 0 | 2 |
[65] † Levnesovia Last Modified in 03/14/23 | 242 | 79 | 79 | 0 | 2 | 0 | 0 | 2 |
[66] † Tethyshadros Last Modified in 03/14/23 | 114 | 182 | 181 | 0 | 28 | 0 | 0 | 2 |
[67] † Bactrosaurus Last Modified in 03/14/23 | 95 | 221 | 219 | 0 | 9 | 0 | 0 | 2 |
[68] † Gilmoreosaurus Last Modified in 03/14/23 | 180 | 144 | 140 | 0 | 3 | 0 | 0 | 2 |
[69] † Telmatosaurus Last Modified in 03/14/23 | 195 | 120 | 118 | 0 | 10 | 0 | 0 | 2 |
[70] † Maiasaura Last Modified in 03/14/23 | 57 | 234 | 233 | 0 | 33 | 0 | 0 | 2 |
[71] † Edmontosaurus Last Modified in 03/14/23 | 88 | 212 | 211 | 0 | 24 | 0 | 0 | 2 |
[72] † Hypacrosaurus Last Modified in 03/14/23 | 61 | 237 | 236 | 0 | 26 | 0 | 0 | 2 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 5742 | |
Project overview | 369 | |
Matrix views | 269 | Matrix landing page (248 views); Iguanodontian matrix (21 views); |
Documents list | 192 | |
Media views | 1155 | Media search (614 views); M851972 (110 views); M851973 (104 views); M851974 (104 views); M851975 (114 views); M851976 (109 views); |
Taxon list | 2229 | |
Bibliography | 153 | |
Views for media list | 408 | |
Specimen list | 967 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 38 | |
Matrix downloads | 31 | Iguanodontian matrix (31 downloads); |
Project downloads | 5 | |
Document downloads | 2 | Iguanodontian matrix from supplemental material (1 download); Iguanodontian matrix, curated by MorphoBank (1 download); |