Project 2368: O. W. M. Rauhut, T. Hübner, K.-P. Lanser. 2016. A new megalosaurid theropod dinosaur from the late Middle Jurassic (Callovian) of north-western Germany: implications for theropod evolution and faunal turnover in the Jurassic. Palaeontologia Electronica. 19 (2.29):1-65.
Abstract
Fragmentary remains of a large, robustly built theropod dinosaur were recovered from the marine middle Callovian Ornatenton Formation of north-eastern Northrhine-Westphalia, Germany. The specimen includes a premaxilla, maxilla, lacrimal, postorbital, dentary, several caudal vertebrae, ribs, fibulae, astragalus, and partial calcaneum. It is here described as a new species of megalosauroid, Wiehenvenator albati n. gen. n. sp., diagnosed by a strongly reduced maxillary antorbital fossa on the base of the ascending process of the maxilla, a very short anterior ramus of the lacrimal with an additional pneumatic depression anteroventral to the lacrimal fenestra, a transversely expanded orbital facet in the postorbital, and a laterally flexed proximal end of the ascending process of the astragalus. Phylogenetic analysis recovers Wiehenvenator as a megalosaurine megalosaurid, sister taxon to the Late Jurassic genus Torvosaurus. It thus adds to the considerable diversity of megalosauroids in the Middle Jurassic. A time-calibrated phylogeny of theropods indicates a rapid radiation of averostran theropods between the Toarcian and the Bathonian. This radiation was probably triggered by the Pliensbachian-Toarcian extinction event, which might have been more important for theropod evolution than the Triassic-Jurassic extinction. The fossil record indicates a faunal turnover from megalosauroid dominated Middle Jurassic to allosauroid / coelurosaur dominated Late Jurassic faunas. However, differences in the Middle and Late Jurassic theropod fossil records both in respect to geographic distribution of localities, as well as sampled environments make this inference problematic, at least in respect to allosauroids. An analysis of environmental preferences of allosauroids and megalosauroids indicates that the former preferred inland environments, whereas the latter are more common in nearshore environments.Read the article »
Article DOI: 10.26879/654
Project DOI: 10.7934/P2368, http://dx.doi.org/10.7934/P2368
This project contains | Matrices |
---|---|
Download Project SDD File | Total scored cells: 8704 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 351 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 788 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:351/0 |
Currently Viewing:
MorphoBank Project 2368
MorphoBank Project 2368
- Creation Date:
27 February 2016 - Publication Date:
23 September 2016 - Media downloads: 1
- Matrix downloads: 80
Authors' Institutions
- Westfälisches Museum für Naturkunde, Münster
- Ludwig-Maximilians-Universitaet Muenchen
- Bayerische Staatssammlung fuer Palaeontologie und Geologie
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Oliver Rauhut Project Administrator | 63 | 1 | 1 | 351 | 0 | 0 | 8704 (8671, 0, 33) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M23784' (62 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Eoraptor Taxon name last Modified on 09/23/16 | 91 | 258 | 258 | 0 | 2 | 0 | 0 | 1 |
[2] † Herrerasaurus Taxon name last Modified on 09/23/16 | 75 | 274 | 274 | 0 | 2 | 0 | 0 | 1 |
[3] † Acrocanthosaurus Taxon name last Modified on 09/23/16 | 62 | 290 | 289 | 0 | 0 | 0 | 0 | 1 |
[4] † Aerosteon Taxon name last Modified on 09/23/16 | 250 | 100 | 100 | 0 | 1 | 0 | 0 | 1 |
[5] † Afrovenator Taxon name last Modified on 09/23/16 | 166 | 185 | 184 | 0 | 1 | 0 | 0 | 1 |
[6] † Allosaurus Taxon name last Modified on 09/23/16 | 27 | 326 | 323 | 0 | 1 | 0 | 0 | 1 |
[7] † Angaturama Taxon name last Modified on 09/23/16 | 332 | 19 | 19 | 0 | 0 | 0 | 0 | 1 |
[8] † Australovenator Taxon name last Modified on 09/23/16 | 277 | 74 | 74 | 0 | 0 | 0 | 0 | 1 |
[9] † Baryonyx Taxon name last Modified on 09/23/16 | 160 | 192 | 191 | 0 | 0 | 0 | 0 | 1 |
[10] † Carcharodontosaurus Taxon name last Modified on 09/23/16 | 234 | 117 | 117 | 0 | 0 | 0 | 0 | 1 |
[11] † Ceratosaurus Taxon name last Modified on 09/23/16 | 58 | 294 | 291 | 0 | 2 | 0 | 0 | 1 |
[12] † Chilantaisaurus Taxon name last Modified on 09/23/16 | 315 | 36 | 36 | 0 | 0 | 0 | 0 | 1 |
[13] † Chuandongocoelurus Taxon name last Modified on 09/23/16 | 297 | 54 | 54 | 0 | 0 | 0 | 0 | 1 |
[14] † Coelophysis bauri Taxon name last Modified on 09/23/16 | 82 | 271 | 268 | 0 | 1 | 0 | 0 | 1 |
[15] † Coelophysis rhodesiensis Taxon name last Modified on 09/23/16 | 54 | 298 | 296 | 0 | 1 | 0 | 0 | 1 |
[16] † Compsognathus Taxon name last Modified on 09/23/16 | 190 | 161 | 161 | 0 | 0 | 0 | 0 | 1 |
[17] † Concavenator Taxon name last Modified on 09/23/16 | 243 | 111 | 108 | 0 | 0 | 0 | 0 | 1 |
[18] † Condorraptor Taxon name last Modified on 09/23/16 | 271 | 80 | 80 | 0 | 0 | 0 | 0 | 1 |
[19] † Cryolophosaurus Taxon name last Modified on 09/23/16 | 208 | 142 | 142 | 0 | 1 | 0 | 0 | 1 |
[20] † CV00214 Taxon name last Modified on 09/23/16 | 258 | 95 | 93 | 0 | 0 | 0 | 0 | 1 |
[21] † Sinosaurus Taxon name last Modified on 09/23/16 | 162 | 189 | 188 | 0 | 1 | 0 | 0 | 1 |
[22] † Dilophosaurus Taxon name last Modified on 09/23/16 | 62 | 288 | 287 | 0 | 2 | 0 | 0 | 1 |
[23] † Dubreuillosaurus Taxon name last Modified on 09/23/16 | 247 | 103 | 103 | 0 | 1 | 0 | 0 | 1 |
[24] † Duriavenator Taxon name last Modified on 09/23/16 | 320 | 31 | 31 | 0 | 0 | 0 | 0 | 1 |
[25] † Elaphrosaurus Taxon name last Modified on 09/23/16 | 235 | 117 | 116 | 0 | 0 | 0 | 0 | 1 |
[26] † Eocarcharia Taxon name last Modified on 09/23/16 | 319 | 32 | 32 | 0 | 0 | 0 | 0 | 1 |
[27] † Eustreptospondylus Taxon name last Modified on 09/23/16 | 145 | 205 | 204 | 0 | 2 | 0 | 0 | 1 |
[28] † Fukuiraptor Taxon name last Modified on 09/23/16 | 279 | 72 | 72 | 0 | 0 | 0 | 0 | 1 |
[29] † Giganotosaurus Taxon name last Modified on 09/23/16 | 166 | 186 | 185 | 0 | 0 | 0 | 0 | 1 |
[30] † Guanlong Taxon name last Modified on 09/23/16 | 129 | 225 | 222 | 0 | 0 | 0 | 0 | 1 |
[31] † Irritator Taxon name last Modified on 09/23/16 | 273 | 76 | 76 | 0 | 2 | 0 | 0 | 1 |
[32] † Lourinhanosaurus Taxon name last Modified on 09/23/16 | 282 | 69 | 69 | 0 | 0 | 0 | 0 | 1 |
[33] † Magnosaurus Taxon name last Modified on 09/23/16 | 317 | 34 | 34 | 0 | 0 | 0 | 0 | 1 |
[34] † Majungasaurus Taxon name last Modified on 09/23/16 | 83 | 267 | 267 | 0 | 1 | 0 | 0 | 1 |
[35] † Mapusaurus Taxon name last Modified on 09/23/16 | 183 | 170 | 168 | 0 | 0 | 0 | 0 | 1 |
[36] † Marshosaurus Taxon name last Modified on 09/23/16 | 191 | 161 | 160 | 0 | 0 | 0 | 0 | 1 |
[37] † Masiakasaurus Taxon name last Modified on 09/23/16 | 128 | 221 | 221 | 0 | 2 | 0 | 0 | 1 |
[38] † Megalosaurus Taxon name last Modified on 09/23/16 | 212 | 140 | 139 | 0 | 0 | 0 | 0 | 1 |
[39] † Megaraptor Taxon name last Modified on 09/23/16 | 302 | 49 | 49 | 0 | 0 | 0 | 0 | 1 |
[40] † Metriacanthosaurus Taxon name last Modified on 09/23/16 | 282 | 69 | 69 | 0 | 0 | 0 | 0 | 1 |
[41] † Monolophosaurus Taxon name last Modified on 09/23/16 | 171 | 182 | 180 | 0 | 0 | 0 | 0 | 1 |
[42] † Neovenator Taxon name last Modified on 09/23/16 | 174 | 177 | 177 | 0 | 0 | 0 | 0 | 1 |
[43] † Ornitholestes Taxon name last Modified on 09/23/16 | 149 | 202 | 201 | 0 | 1 | 0 | 0 | 1 |
[44] † Piatnitzkysaurus Taxon name last Modified on 09/23/16 | 167 | 184 | 184 | 0 | 0 | 0 | 0 | 1 |
[45] † Piveteausaurus Taxon name last Modified on 09/23/16 | 326 | 25 | 25 | 0 | 0 | 0 | 0 | 1 |
[46] † Poekilopleuron Taxon name last Modified on 09/23/16 | 309 | 42 | 42 | 0 | 0 | 0 | 0 | 1 |
[47] † Proceratosaurus Taxon name last Modified on 09/23/16 | 271 | 80 | 79 | 0 | 1 | 0 | 0 | 1 |
[48] † Saurophaganax Taxon name last Modified on 09/23/16 | 282 | 69 | 68 | 0 | 1 | 0 | 0 | 1 |
[49] † Shaochilong Taxon name last Modified on 09/23/16 | 310 | 41 | 41 | 0 | 0 | 0 | 0 | 1 |
[50] † Shidaisaurus Taxon name last Modified on 09/23/16 | 292 | 60 | 59 | 0 | 0 | 0 | 0 | 1 |
[51] † Siamotyrannus Taxon name last Modified on 09/23/16 | 304 | 47 | 47 | 0 | 0 | 0 | 0 | 1 |
[52] † Sinraptor dongi Taxon name last Modified on 09/23/16 | 74 | 277 | 277 | 0 | 0 | 0 | 0 | 1 |
[53] † Spinosaurus Taxon name last Modified on 09/23/16 | 277 | 72 | 72 | 0 | 2 | 0 | 0 | 1 |
[54] † Streptospondylus Taxon name last Modified on 09/23/16 | 302 | 49 | 49 | 0 | 0 | 0 | 0 | 1 |
[55] † Suchomimus Taxon name last Modified on 09/23/16 | 174 | 177 | 176 | 0 | 1 | 0 | 0 | 1 |
[56] † S zigongensis Taxon name last Modified on 09/23/16 | 228 | 124 | 123 | 0 | 0 | 0 | 0 | 1 |
[57] † Torvosaurus Taxon name last Modified on 09/23/16 | 124 | 227 | 225 | 0 | 2 | 0 | 0 | 1 |
[58] † Tyrannotitan Taxon name last Modified on 09/23/16 | 287 | 64 | 64 | 0 | 0 | 0 | 0 | 1 |
[59] † Xuanhanosaurus Taxon name last Modified on 09/23/16 | 309 | 42 | 42 | 0 | 0 | 0 | 0 | 1 |
[60] † Yangchuano hepingensis Taxon name last Modified on 09/23/16 | 147 | 204 | 204 | 0 | 0 | 0 | 0 | 1 |
[61] † Yangchuano shangyuensis Taxon name last Modified on 09/23/16 | 167 | 184 | 184 | 0 | 0 | 0 | 0 | 1 |
[62] † Wiehenvenator Taxon name last Modified on 09/23/16 | 288 | 61 | 61 | 0 | 2 | 0 | 0 | 1 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 406 | |
Project downloads | 325 | |
Matrix downloads | 80 | Wiehenvenator matrix (80 downloads); |
Media downloads | 1 | M409282 (1 download); |