Project 3203: A. C. Pritchard, H. Sues. 2019. Postcranial remains of Teraterpeton hrynewichorum (Reptilia: Archosauromorpha) and the mosaic evolution of the saurian postcranial skeleton. Journal of Systematic Palaeontology. 17 (20):1745-1765.
Abstract
Teraterpeton hrynewichorum is an unusual archosauromorph reptile from the Upper Triassic (Carnian) Evangeline Member of the Wolfville Formation in Nova Scotia (Canada). Its long snout has transversely broad, cusped ‘molariform’ teeth posteriorly and lacks teeth anteriorly. The temporal region of the cranium is ‘euryapsid’ with large upper and closed lower temporal fenestrae. A previously undescribed specimen referable to Teraterpeton includes a nearly complete pelvic girdle and both hind limbs. The ilium has a long, dorsoventrally deep anterior process similar to that of derived rhynchosaurs. The pelvis has a well-developed thyroid fenestra, a feature shared only by Tanystropheidae among Archosauromorpha. Metatarsal V is proximodistally short, resembling the condition in Tanystropheidae. The pedal unguals of Teraterpeton are strongly flattened mediolaterally, dorsoventrally deep and weakly curved, much like the manual unguals. We performed a phylogenetic analysis of a matrix comprising 61 taxa of Permo-Triassic diapsid reptiles and 337 characters, which supports the position of Teraterpeton as the sister-taxon of Trilophosaurus þ Spinosuchus. In the current phylogeny, parsimony-based character optimization of the aforementioned character-states in Teraterpeton indicate that all were acquired independently from other saurian lineages. The unusual combination of postcranial features in Teraterpeton underscores the critical importance of comprehensive taxon sampling for understanding the mode of character change among Triassic diapsid reptiles and careful apomorphy-based identifications to faunal analyses.Read the article »
Article DOI: 10.1080/14772019.2018.1551249
Project DOI: 10.7934/P3203, http://dx.doi.org/10.7934/P3203
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 12936 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 337 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 721 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:311/26 |
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MorphoBank Project 3203
MorphoBank Project 3203
- Creation Date:
03 June 2018 - Publication Date:
04 February 2019 - Project views: 20204
- Media downloads: 2
- Matrix downloads: 12
Authors' Institutions
- National Museum of Natural History, Smithsonian Institution
- Smithsonian Institution
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Adam Pritchard Project Administrator | 61 | 2 | 1 | 337 | 0 | 0 | 12936 (12397, 0, 539) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M25470' (61 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Petrolacosaurus kansasensis Last Modified in 06/03/18 | 26 | 291 | 289 | 0 | 22 | 0 | 0 | 1 |
[2] † Orovenator mayorum Last Modified in 06/03/18 | 241 | 91 | 91 | 0 | 5 | 0 | 0 | 1 |
[3] † Hypuronector limnaios Last Modified in 06/03/18 | 260 | 73 | 73 | 0 | 4 | 0 | 0 | 1 |
[4] † Vallesaurus cenensis Last Modified in 06/03/18 | 208 | 122 | 122 | 0 | 7 | 0 | 0 | 1 |
[5] † Megalancosaurus preonensis Last Modified in 06/03/18 | 187 | 147 | 147 | 0 | 3 | 0 | 0 | 1 |
[6] † Drepanosaurus unguicaudatus Last Modified in 06/03/18 | 237 | 95 | 95 | 0 | 5 | 0 | 0 | 1 |
[7] † Dolabrosaurus aquatilis Last Modified in 06/03/18 | 290 | 44 | 44 | 0 | 3 | 0 | 0 | 1 |
[8] † Avicranium renestoi Last Modified in 06/03/18 | 227 | 97 | 97 | 0 | 13 | 0 | 0 | 1 |
[9] † Coelurosauravus elivensis Last Modified in 06/03/18 | 170 | 158 | 158 | 0 | 9 | 0 | 0 | 1 |
[10] † Weigeltisaurus jaekeli Last Modified in 06/03/18 | 210 | 123 | 123 | 0 | 4 | 0 | 0 | 1 |
[11] † Rautiania spp. Last Modified in 06/03/18 | 247 | 83 | 83 | 0 | 7 | 0 | 0 | 1 |
[12] † Claudiosaurus germaini Last Modified in 06/03/18 | 77 | 255 | 253 | 0 | 7 | 0 | 0 | 1 |
[13] † Acerosodontosaurus piveteaui Last Modified in 06/03/18 | 222 | 109 | 109 | 0 | 6 | 0 | 0 | 1 |
[14] † Hovasaurus boulei Last Modified in 06/03/18 | 127 | 207 | 205 | 0 | 5 | 0 | 0 | 1 |
[15] † Thadeosaurus colcanapi Last Modified in 06/03/18 | 181 | 149 | 149 | 0 | 7 | 0 | 0 | 1 |
[16] † TropidostomaZone_Youngina Last Modified in 06/03/18 | 133 | 201 | 201 | 0 | 3 | 0 | 0 | 1 |
[17] † Youngina capensis Last Modified in 06/03/18 | 38 | 285 | 285 | 0 | 14 | 0 | 0 | 1 |
[18] † Huehuecuetzpalli mixtecus Last Modified in 03/25/20 | 150 | 185 | 185 | 0 | 2 | 0 | 0 | 1 |
[19] Shinisaurus crocodilurus Last Modified in 06/03/18 | 19 | 296 | 295 | 0 | 23 | 0 | 0 | 1 |
[20] Iguana iguana Last Modified in 06/03/18 | 16 | 309 | 309 | 0 | 12 | 0 | 0 | 1 |
[21] Uromastyx acanthinura Last Modified in 03/25/20 | 27 | 294 | 294 | 0 | 16 | 0 | 0 | 1 |
[22] † Gephyrosaurus bridensis Last Modified in 06/03/18 | 79 | 241 | 241 | 0 | 17 | 0 | 0 | 1 |
[23] † Diphydontosaurus avonis Last Modified in 06/03/18 | 114 | 226 | 221 | 0 | 2 | 0 | 0 | 1 |
[24] † Planocephalosaurus robinsonae Last Modified in 06/03/18 | 109 | 229 | 226 | 0 | 2 | 0 | 0 | 1 |
[25] † Sphenotitan leyesi Last Modified in 06/03/18 | 255 | 77 | 76 | 0 | 6 | 0 | 0 | 1 |
[26] † Clevosaurus brasiliensis Last Modified in 06/03/18 | 210 | 127 | 125 | 0 | 2 | 0 | 0 | 1 |
[27] † Clevosaurus hudsoni Last Modified in 06/03/18 | 22 | 300 | 297 | 0 | 18 | 0 | 0 | 1 |
[28] Sphenodon punctatum Last Modified in 06/03/18 | 12 | 307 | 305 | 0 | 20 | 0 | 0 | 1 |
[29] † Colobops noviportensis Last Modified in 06/03/18 | 286 | 52 | 50 | 0 | 1 | 0 | 0 | 1 |
[30] † Protorosaurus speneri Last Modified in 06/03/18 | 72 | 254 | 254 | 0 | 11 | 0 | 0 | 1 |
[31] † Macrocnemus bassanii Last Modified in 06/03/18 | 88 | 243 | 242 | 0 | 7 | 0 | 0 | 1 |
[32] † Macrocnemus fuyuanensis Last Modified in 06/03/18 | 114 | 218 | 217 | 0 | 6 | 0 | 0 | 1 |
[33] † Amotosaurus rotfeldensis Last Modified in 06/03/18 | 157 | 177 | 176 | 0 | 4 | 0 | 0 | 1 |
[34] † Tanystropheus longobardicus Last Modified in 06/03/18 | 28 | 305 | 300 | 0 | 9 | 0 | 0 | 1 |
[35] † Ozimek volans Last Modified in 06/03/18 | 186 | 151 | 151 | 0 | 0 | 0 | 0 | 1 |
[36] Langobardisaurus pandoflii concatenation Last Modified in 06/03/18 | 155 | 179 | 179 | 0 | 3 | 0 | 0 | 1 |
[37] † Tanytrachelos ahynis Last Modified in 06/03/18 | 139 | 193 | 193 | 0 | 5 | 0 | 0 | 1 |
[38] † Mesosuchus browni Last Modified in 06/03/18 | 27 | 301 | 299 | 0 | 11 | 0 | 0 | 1 |
[39] † Howesia browni Last Modified in 06/03/18 | 211 | 122 | 121 | 0 | 5 | 0 | 0 | 1 |
[40] † Eohyosaurus wolvaardti Last Modified in 06/03/18 | 270 | 68 | 67 | 0 | 0 | 0 | 0 | 1 |
[41] † Rhynchosaurus articeps Last Modified in 03/25/20 | 64 | 256 | 255 | 0 | 18 | 0 | 0 | 1 |
[42] † Teyumbaita sulcognathus Last Modified in 06/03/18 | 121 | 199 | 199 | 0 | 17 | 0 | 0 | 1 |
[43] † Hyperodapedon gordoni Last Modified in 03/25/20 | 90 | 230 | 229 | 0 | 18 | 0 | 0 | 1 |
[44] † Boreopricea funerea Last Modified in 06/03/18 | 124 | 207 | 207 | 0 | 6 | 0 | 0 | 1 |
[45] † Teraterpeton hrynewichorum full codings Last Modified in 06/03/18 | 132 | 204 | 202 | 0 | 3 | 0 | 0 | 1 |
[46] † Trilophosaurus buettneri Last Modified in 03/25/20 | 13 | 305 | 304 | 0 | 20 | 0 | 0 | 1 |
[47] † Spinosuchus caseanus (combined) Last Modified in 06/03/18 | 144 | 195 | 192 | 0 | 1 | 0 | 0 | 1 |
[48] † Icarosaurus siefkeri Last Modified in 06/03/18 | 162 | 172 | 172 | 0 | 3 | 0 | 0 | 1 |
[49] † Kuehneosaurus latus Last Modified in 03/25/20 | 59 | 280 | 274 | 0 | 4 | 0 | 0 | 1 |
[50] † Pamelaria dolichotrachela Last Modified in 06/03/18 | 83 | 251 | 247 | 0 | 7 | 0 | 0 | 1 |
[51] † Shringasaurus indicus Last Modified in 06/03/18 | 141 | 196 | 194 | 0 | 2 | 0 | 0 | 1 |
[52] † Azendohsaurus madagaskarensis Last Modified in 06/03/18 | 15 | 311 | 311 | 0 | 11 | 0 | 0 | 1 |
[53] † Azendohsaurus laaroussi Last Modified in 06/03/18 | 295 | 40 | 40 | 0 | 2 | 0 | 0 | 1 |
[54] † Prolacerta broomi Last Modified in 06/03/18 | 19 | 313 | 308 | 0 | 10 | 0 | 0 | 1 |
[55] † Proterosuchus fergusi Last Modified in 06/03/18 | 40 | 293 | 290 | 0 | 7 | 0 | 0 | 1 |
[56] † Proterosuchus yuani Last Modified in 06/03/18 | 91 | 239 | 239 | 0 | 7 | 0 | 0 | 1 |
[57] † Erythrosuchus africanus Last Modified in 03/25/20 | 52 | 277 | 277 | 0 | 8 | 0 | 0 | 1 |
[58] † Euparkeria capensis Last Modified in 06/03/18 | 65 | 264 | 263 | 0 | 9 | 0 | 0 | 1 |
[59] † Batrachotomus kupferzellensis Last Modified in 06/03/18 | 49 | 273 | 271 | 0 | 16 | 0 | 0 | 1 |
[60] † Coelophysis bauri Last Modified in 03/25/20 | 59 | 250 | 246 | 0 | 32 | 0 | 0 | 1 |
[61] † Plateosaurus engelhardti Last Modified in 06/03/18 | 49 | 258 | 256 | 0 | 32 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 20204 | |
Project overview | 1627 | |
Media views | 3069 | Media search (2636 views); M584407 (433 views); |
Matrix views | 1038 | Matrix landing page (867 views); Archosauromorph phylogeny (171 views); |
Taxon list | 9600 | |
Views for media list | 1942 | |
Specimen list | 2273 | |
Bibliography | 635 | |
Documents list | 8 | |
Folio views | 12 | Folio list (2 views); CT scan Maxilla USNM 5730 Brachiosaurus (2 views); Premaxilla CT scan USNM 5730 (2 views); Braincase USNM 5730 Brachiosaurus (2 views); Potter Creek Cervical Vertebrae (2 views); Dentary USNM 5730 (2 views); |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 205 | |
Matrix downloads | 12 | Archosauromorph phylogeny (12 downloads); |
Project downloads | 191 | |
Media downloads | 2 | M584407 (2 downloads); |