Project 3267: O. W. Rauhut, D. Pol. 2019. Probable basal allosauroid from the early Middle Jurassic Cañadón Asfalto Formation of Argentina highlights phylogenetic uncertainty in tetanuran theropod dinosaurs. Scientific Reports. 9 (1):null.
Abstract
Tetanurae, the most successful clade of theropod dinosaurs, including modern birds split into three major clades early in their evolutionary history: Megalosauroidea, Coelurosauria, and Allosauroidea. The oldest tetanurans occur in the earliest Middle Jurassic, but the early fossil record of the clade is still poor. Here we report one of the oldest known and most complete pre-Late Jurassic tetanuran, the probable allosauroid Asfaltovenator vialidadi gen. et sp. nov., which has an unusual character combination, uniting features currently considered to be apomorphic of different tetanuran lineages. A phylogenetic analysis resulted in a monophyletic Carnosauria (Allosauroidea + Megalosauroidea), and the inclusion of the new taxon significantly changes topology within carnosaurs. The analysis shows concentrated homoplasy in proximal nodes at the base of Tetanurae, and a temporal peak at the Pliensbachian-Toarcian extinction event, recently identified as a potential driver of tetanuran radiation. These results highlight the complex morphological evolution in the early radiation of tetanuran theropods, in which convergences and parallelisms were extremely common. This pattern seems to be a common feature in rapid radiation events of major clades of vertebrates and might explain the common difficulties to unravel phylogenetic relationships of important lineages at the base of major clades.Read the article »
Article DOI: 10.1038/s41598-019-53672-7
Project DOI: 10.7934/P3267, http://dx.doi.org/10.7934/P3267
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 9376 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 355 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 802 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:325/30 |
Currently Viewing:
MorphoBank Project 3267
MorphoBank Project 3267
- Creation Date:
21 September 2018 - Publication Date:
12 December 2019 - Project views: 15561
- Media downloads: 1
- Matrix downloads: 71
Authors' Institutions
- Museo Paleontológico Egidio Feruglio
- Ludwig-Maximilians-Universitaet Muenchen
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
- Bayerische Staatssammlung fuer Palaeontologie und Geologie
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Oliver Rauhut Project Administrator | 69 | 1 | 1 | 355 | 0 | 0 | 9376 (9302, 0, 74) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M26383' (68 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Eoraptor Last Modified in 12/12/19 | 110 | 239 | 239 | 0 | 6 | 0 | 0 | 1 |
[2] Herrerasaurus Last Modified in 12/12/19 | 83 | 266 | 265 | 0 | 7 | 0 | 0 | 1 |
[3] Acrocanthosaurus Last Modified in 12/12/19 | 70 | 288 | 285 | 0 | 0 | 0 | 0 | 1 |
[4] Aerosteon Last Modified in 12/12/19 | 254 | 100 | 100 | 0 | 1 | 0 | 0 | 1 |
[5] Afrovenator Last Modified in 12/12/19 | 175 | 180 | 179 | 0 | 1 | 0 | 0 | 1 |
[6] Allosaurus Last Modified in 12/12/19 | 37 | 321 | 317 | 0 | 1 | 0 | 0 | 1 |
[7] Angaturama Last Modified in 12/12/19 | 339 | 15 | 15 | 0 | 1 | 0 | 0 | 1 |
[8] Asfaltovenator Last Modified in 12/12/19 | 139 | 216 | 215 | 0 | 1 | 0 | 0 | 1 |
[9] Australovenator Last Modified in 12/12/19 | 282 | 73 | 73 | 0 | 0 | 0 | 0 | 1 |
[10] Baryonyx Last Modified in 12/12/19 | 171 | 186 | 183 | 0 | 1 | 0 | 0 | 1 |
[11] Carcharodontosaurus Last Modified in 12/12/19 | 250 | 105 | 104 | 0 | 1 | 0 | 0 | 1 |
[12] Ceratosaurus Last Modified in 12/12/19 | 66 | 288 | 285 | 0 | 4 | 0 | 0 | 1 |
[13] Chilantaisaurus Last Modified in 12/12/19 | 319 | 36 | 36 | 0 | 0 | 0 | 0 | 1 |
[14] Chuandongocoelurus Last Modified in 12/12/19 | 302 | 53 | 53 | 0 | 0 | 0 | 0 | 1 |
[15] "Coelophysis bauri" Last Modified in 12/12/19 | 99 | 258 | 254 | 0 | 2 | 0 | 0 | 1 |
[16] "Coelophysis rhodesiensis" Last Modified in 12/12/19 | 68 | 287 | 285 | 0 | 2 | 0 | 0 | 1 |
[17] Coelurus Last Modified in 12/12/19 | 256 | 100 | 98 | 0 | 1 | 0 | 0 | 1 |
[18] Compsognathus Last Modified in 12/12/19 | 191 | 163 | 162 | 0 | 2 | 0 | 0 | 1 |
[19] Concavenator Last Modified in 12/12/19 | 241 | 116 | 114 | 0 | 0 | 0 | 0 | 1 |
[20] Condorraptor Last Modified in 12/12/19 | 276 | 79 | 79 | 0 | 0 | 0 | 0 | 1 |
[21] Cryolophosaurus Last Modified in 12/12/19 | 220 | 133 | 133 | 0 | 2 | 0 | 0 | 1 |
[22] CV00214 Last Modified in 12/12/19 | 268 | 90 | 87 | 0 | 0 | 0 | 0 | 1 |
[23] Sinosaurus Last Modified in 12/12/19 | 161 | 196 | 193 | 0 | 1 | 0 | 0 | 1 |
[24] Dilophosaurus Last Modified in 12/12/19 | 73 | 280 | 279 | 0 | 3 | 0 | 0 | 1 |
[25] Dubreuillosaurus Last Modified in 12/12/19 | 251 | 103 | 103 | 0 | 1 | 0 | 0 | 1 |
[26] Duriavenator Last Modified in 12/12/19 | 322 | 33 | 33 | 0 | 0 | 0 | 0 | 1 |
[27] Elaphrosaurus Last Modified in 12/12/19 | 238 | 118 | 116 | 0 | 1 | 0 | 0 | 1 |
[28] Eoabelisaurus Last Modified in 12/12/19 | 165 | 189 | 186 | 0 | 4 | 0 | 0 | 1 |
[29] Eocarcharia Last Modified in 12/12/19 | 323 | 32 | 32 | 0 | 0 | 0 | 0 | 1 |
[30] Eustreptospondylus Last Modified in 12/12/19 | 153 | 200 | 200 | 0 | 2 | 0 | 0 | 1 |
[31] Fukuiraptor Last Modified in 12/12/19 | 288 | 68 | 67 | 0 | 0 | 0 | 0 | 1 |
[32] Giganotosaurus Last Modified in 12/12/19 | 175 | 181 | 180 | 0 | 0 | 0 | 0 | 1 |
[33] Guanlong Last Modified in 12/12/19 | 131 | 226 | 224 | 0 | 0 | 0 | 0 | 1 |
[34] Ichthyovenator Last Modified in 12/12/19 | 271 | 86 | 84 | 0 | 0 | 0 | 0 | 1 |
[35] Irritator Last Modified in 12/12/19 | 289 | 62 | 62 | 0 | 4 | 0 | 0 | 1 |
[36] Leshansaurus Last Modified in 12/12/19 | 274 | 82 | 81 | 0 | 0 | 0 | 0 | 1 |
[37] Lourinhanosaurus Last Modified in 12/12/19 | 285 | 70 | 70 | 0 | 0 | 0 | 0 | 1 |
[38] Magnosaurus Last Modified in 12/12/19 | 320 | 35 | 35 | 0 | 0 | 0 | 0 | 1 |
[39] Majungasaurus Last Modified in 12/12/19 | 94 | 258 | 257 | 0 | 4 | 0 | 0 | 1 |
[40] Mapusaurus Last Modified in 12/12/19 | 190 | 167 | 165 | 0 | 0 | 0 | 0 | 1 |
[41] Marshosaurus Last Modified in 12/12/19 | 189 | 167 | 166 | 0 | 0 | 0 | 0 | 1 |
[42] Masiakasaurus Last Modified in 12/12/19 | 136 | 214 | 214 | 0 | 5 | 0 | 0 | 1 |
[43] Megalosaurus Last Modified in 12/12/19 | 216 | 140 | 139 | 0 | 0 | 0 | 0 | 1 |
[44] Megaraptor Last Modified in 12/12/19 | 304 | 51 | 51 | 0 | 0 | 0 | 0 | 1 |
[45] Metriacanthosaurus Last Modified in 12/12/19 | 292 | 63 | 63 | 0 | 0 | 0 | 0 | 1 |
[46] Monolophosaurus Last Modified in 12/12/19 | 175 | 182 | 180 | 0 | 0 | 0 | 0 | 1 |
[47] Neovenator Last Modified in 12/12/19 | 179 | 178 | 176 | 0 | 0 | 0 | 0 | 1 |
[48] Ornitholestes Last Modified in 12/12/19 | 150 | 206 | 203 | 0 | 2 | 0 | 0 | 1 |
[49] Piatnitzkysaurus Last Modified in 12/12/19 | 169 | 186 | 186 | 0 | 0 | 0 | 0 | 1 |
[50] Piveteausaurus Last Modified in 12/12/19 | 332 | 22 | 22 | 0 | 1 | 0 | 0 | 1 |
[51] Poekilopleuron Last Modified in 12/12/19 | 314 | 41 | 41 | 0 | 0 | 0 | 0 | 1 |
[52] Proceratosaurus Last Modified in 12/12/19 | 274 | 80 | 80 | 0 | 1 | 0 | 0 | 1 |
[53] Saurophaganax Last Modified in 12/12/19 | 288 | 67 | 66 | 0 | 1 | 0 | 0 | 1 |
[54] Shaochilong Last Modified in 12/12/19 | 319 | 36 | 36 | 0 | 0 | 0 | 0 | 1 |
[55] Shidaisaurus Last Modified in 12/12/19 | 299 | 57 | 56 | 0 | 0 | 0 | 0 | 1 |
[56] Siamotyrannus Last Modified in 12/12/19 | 305 | 51 | 50 | 0 | 0 | 0 | 0 | 1 |
[57] "Sinraptor dongi" Last Modified in 12/12/19 | 83 | 272 | 272 | 0 | 0 | 0 | 0 | 1 |
[58] Spinosaurus Last Modified in 12/12/19 | 284 | 69 | 68 | 0 | 3 | 0 | 0 | 1 |
[59] Streptospondylus Last Modified in 12/12/19 | 311 | 45 | 44 | 0 | 0 | 0 | 0 | 1 |
[60] Suchomimus Last Modified in 12/12/19 | 184 | 172 | 170 | 0 | 1 | 0 | 0 | 1 |
[61] "S zigongensis" Last Modified in 12/12/19 | 234 | 123 | 121 | 0 | 0 | 0 | 0 | 1 |
[62] Torvosaurus Last Modified in 12/12/19 | 130 | 226 | 223 | 0 | 2 | 0 | 0 | 1 |
[63] Tyrannotitan Last Modified in 12/12/19 | 291 | 65 | 64 | 0 | 0 | 0 | 0 | 1 |
[64] Wiehenvenator Last Modified in 12/12/19 | 291 | 62 | 62 | 0 | 2 | 0 | 0 | 1 |
[65] Xuanhanosaurus Last Modified in 12/12/19 | 316 | 39 | 39 | 0 | 0 | 0 | 0 | 1 |
[66] "Yangchuano hepingensis" Last Modified in 12/12/19 | 158 | 199 | 197 | 0 | 0 | 0 | 0 | 1 |
[67] "Yangchuano shangyuensis" Last Modified in 12/12/19 | 177 | 179 | 178 | 0 | 0 | 0 | 0 | 1 |
[68] Zuolong Last Modified in 12/12/19 | 223 | 132 | 129 | 0 | 3 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 15561 | |
Project overview | 1346 | |
Matrix views | 960 | Asfaltovenator matrix (131 views); Matrix landing page (829 views); |
Media views | 2559 | Media search (2192 views); M682129 (367 views); |
Bibliography | 561 | |
Views for media list | 811 | |
Specimen list | 1383 | |
Taxon list | 7932 | |
Documents list | 9 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 238 | |
Project downloads | 166 | |
Matrix downloads | 71 | Asfaltovenator matrix (71 downloads); |
Media downloads | 1 | M682129 (1 download); |