Project 2816: A. C. Pritchard, J. A. Gauthier, M. Hanson, G. S. Bever, B. S. Bhullar. 2018. A tiny Triassic saurian from Connecticut and the early evolution of the diapsid feeding apparatus. Nature Communications. 9:1213.
Abstract
Following the Permo-Triassic Extinction, large-bodied diapsid reptiles with a body length greater than one meter rapidly expanded their ecological roles. This diversification is reflected in enormous disparity in the development of the rostrum and adductor chamber. However, it is unclear how marked the diversity of the feeding apparatus was in contemporary small-bodied diapsids. Here we describe the remarkably small skull (2.5 cm long) of a saurian reptile, Colobops noviportensis, gen. et sp. nov., from the Triassic New Haven Arkose of Connecticut, USA. The taxon possesses an exceptionally reinforced snout and strikingly expanded supratemporal fossae for adductor musculature relative to any known Mesozoic or Recent diapsid of similar size. Our phylogenetic analyses support C. noviportensis as an early diverging pan-archosaur. Colobops noviportensis reveals extraordinary disparity of the feeding apparatus in small-bodied early Mesozoic diapsids, and a suite of morphologies, functionally related to a powerful bite, unknown in any small-bodied diapsid.Read the article »
Article DOI: 10.1038/s41467-018-03508-1
Project DOI: 10.7934/P2816, http://dx.doi.org/10.7934/P2816
This project contains | Matrices |
---|---|
Download Project SDD File | Total scored cells: 11484 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: 689 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:300/23 |
Currently Viewing:
MorphoBank Project 2816
MorphoBank Project 2816
- Creation Date:
29 January 2018 - Publication Date:
23 April 2018 - Project views: 28320
- Media downloads: 2
- Matrix downloads: 35
This research
supported by
Authors' Institutions
- Yale University
- Johns Hopkins University
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Adam Pritchard Project Administrator | 57 | 1 | 10 | 323 | 0 | 0 | 11484 (10992, 0, 492) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M24987' (57 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 01/29/18 | 23 | 280 | 278 | 0 | 22 | 0 | 0 | 1 |
[2] † Eohyosaurus wolvaardti Last Modified in 01/29/18 | 258 | 66 | 65 | 0 | 0 | 0 | 0 | 1 |
[3] † Scaphonyx baby Last Modified in 01/29/18 | 224 | 100 | 99 | 0 | 0 | 0 | 0 | 1 |
[4] † Orovenator mayorum Last Modified in 01/29/18 | 230 | 88 | 88 | 0 | 5 | 0 | 0 | 1 |
[5] † Huehuecuetzpalli mixtecus Last Modified in 01/29/18 | 142 | 179 | 179 | 0 | 2 | 0 | 0 | 1 |
[6] Shinisaurus crocodilurus Last Modified in 01/29/18 | 17 | 284 | 284 | 0 | 22 | 0 | 0 | 1 |
[7] Iguana iguana Last Modified in 01/29/18 | 14 | 297 | 297 | 0 | 12 | 0 | 0 | 1 |
[8] Uromastyx acanthinura Last Modified in 01/29/18 | 23 | 284 | 284 | 0 | 16 | 0 | 0 | 1 |
[9] † Gephyrosaurus bridensis Last Modified in 01/29/18 | 74 | 232 | 232 | 0 | 17 | 0 | 0 | 1 |
[10] † Diphydontosaurus avonis Last Modified in 01/29/18 | 106 | 218 | 215 | 0 | 2 | 0 | 0 | 1 |
[11] † Planocephalosaurus robinsonae Last Modified in 01/29/18 | 103 | 221 | 218 | 0 | 2 | 0 | 0 | 1 |
[12] † Clevosaurus brasiliensis Last Modified in 01/29/18 | 198 | 125 | 123 | 0 | 2 | 0 | 0 | 1 |
[13] † Clevosaurus hudsoni Last Modified in 01/29/18 | 31 | 284 | 281 | 0 | 11 | 0 | 0 | 1 |
[14] † Protorosaurus speneri Last Modified in 01/29/18 | 68 | 244 | 244 | 0 | 11 | 0 | 0 | 1 |
[15] † Pamelaria dolichotrachela Last Modified in 01/29/18 | 109 | 206 | 206 | 0 | 8 | 0 | 0 | 1 |
[16] † Azendohsaurus madagaskarensis Last Modified in 01/29/18 | 13 | 300 | 299 | 0 | 11 | 0 | 0 | 1 |
[17] † Azendohsaurus laaroussi Last Modified in 01/29/18 | 285 | 36 | 36 | 0 | 2 | 0 | 0 | 1 |
[18] † Teraterpeton hrynewichorum Last Modified in 01/29/18 | 176 | 144 | 144 | 0 | 3 | 0 | 0 | 1 |
[19] † Trilophosaurus buettneri Last Modified in 01/29/18 | 10 | 294 | 293 | 0 | 20 | 0 | 0 | 1 |
[20] † Trilophosaurus jacobsi Last Modified in 01/29/18 | 145 | 172 | 172 | 0 | 6 | 0 | 0 | 1 |
[21] † Prolacerta broomi Last Modified in 01/29/18 | 17 | 301 | 296 | 0 | 10 | 0 | 0 | 1 |
[22] † Proterosuchus fergusi Last Modified in 01/29/18 | 38 | 279 | 278 | 0 | 7 | 0 | 0 | 1 |
[23] † Proterosuchus yuani Last Modified in 01/29/18 | 88 | 228 | 228 | 0 | 7 | 0 | 0 | 1 |
[24] † TropidostomaZone_Youngina Last Modified in 01/29/18 | 126 | 194 | 194 | 0 | 3 | 0 | 0 | 1 |
[25] † Youngina capensis Last Modified in 01/29/18 | 35 | 274 | 274 | 0 | 14 | 0 | 0 | 1 |
[26] † Mesosuchus browni Last Modified in 01/29/18 | 23 | 291 | 289 | 0 | 11 | 0 | 0 | 1 |
[27] † Rhynchosaurus articeps Last Modified in 01/29/18 | 59 | 247 | 246 | 0 | 18 | 0 | 0 | 1 |
[28] † Teyumbaita sulcognathus Last Modified in 01/29/18 | 116 | 190 | 190 | 0 | 17 | 0 | 0 | 1 |
[29] † Macrocnemus bassanii Last Modified in 01/29/18 | 84 | 233 | 232 | 0 | 7 | 0 | 0 | 1 |
[30] † Macrocnemus fuyuanensis Last Modified in 01/29/18 | 106 | 211 | 211 | 0 | 6 | 0 | 0 | 1 |
[31] Langobardisaurus pandoflii concatenation Last Modified in 01/29/18 | 146 | 174 | 174 | 0 | 3 | 0 | 0 | 1 |
[32] † Tanystropheus longobardicus Last Modified in 01/29/18 | 27 | 290 | 287 | 0 | 9 | 0 | 0 | 1 |
[33] † Tanytrachelos ahynis Last Modified in 01/29/18 | 133 | 185 | 185 | 0 | 5 | 0 | 0 | 1 |
[34] † Amotosaurus rotfeldensis Last Modified in 01/29/18 | 151 | 169 | 168 | 0 | 4 | 0 | 0 | 1 |
[35] † Erythrosuchus africanus Last Modified in 01/29/18 | 50 | 265 | 265 | 0 | 8 | 0 | 0 | 1 |
[36] † Euparkeria capensis Last Modified in 01/29/18 | 64 | 250 | 250 | 0 | 9 | 0 | 0 | 1 |
[37] † Batrachotomus kupferzellensis Last Modified in 01/29/18 | 48 | 260 | 258 | 0 | 16 | 0 | 0 | 1 |
[38] † Coelophysis bauri Last Modified in 01/29/18 | 61 | 231 | 229 | 0 | 33 | 0 | 0 | 1 |
[39] † Plateosaurus engelhardti Last Modified in 01/29/18 | 45 | 247 | 246 | 0 | 32 | 0 | 0 | 1 |
[40] † Howesia browni Last Modified in 01/29/18 | 199 | 120 | 119 | 0 | 5 | 0 | 0 | 1 |
[41] † Claudiosaurus germaini Last Modified in 01/29/18 | 73 | 244 | 243 | 0 | 7 | 0 | 0 | 1 |
[42] † Hovasaurus boulei Last Modified in 01/29/18 | 117 | 203 | 201 | 0 | 5 | 0 | 0 | 1 |
[43] † Thadeosaurus colcanapi Last Modified in 01/29/18 | 169 | 147 | 147 | 0 | 7 | 0 | 0 | 1 |
[44] † Acerosodontosaurus piveteaui Last Modified in 01/29/18 | 214 | 103 | 103 | 0 | 6 | 0 | 0 | 1 |
[45] † Coelurosauravus elivensis Last Modified in 01/29/18 | 160 | 154 | 154 | 0 | 9 | 0 | 0 | 1 |
[46] † Weigeltisaurus jaekeli Last Modified in 01/29/18 | 199 | 120 | 120 | 0 | 4 | 0 | 0 | 1 |
[47] † Rautiania spp. Last Modified in 01/29/18 | 237 | 79 | 79 | 0 | 7 | 0 | 0 | 1 |
[48] † Dolabrosaurus aquatilis Last Modified in 01/29/18 | 276 | 44 | 44 | 0 | 3 | 0 | 0 | 1 |
[49] † CoelophysisDrepanosaur Last Modified in 01/29/18 | 213 | 97 | 97 | 0 | 13 | 0 | 0 | 1 |
[50] † Drepanosaurus unguicaudatus Last Modified in 01/29/18 | 224 | 94 | 94 | 0 | 5 | 0 | 0 | 1 |
[51] † Hypuronector limnaios Last Modified in 01/29/18 | 247 | 72 | 72 | 0 | 4 | 0 | 0 | 1 |
[52] † Icarosaurus siefkeri Last Modified in 01/29/18 | 157 | 163 | 163 | 0 | 3 | 0 | 0 | 1 |
[53] † Kuehneosaurus latus Last Modified in 01/29/18 | 55 | 269 | 264 | 0 | 4 | 0 | 0 | 1 |
[54] † Megalancosaurus preonensis Last Modified in 01/29/18 | 177 | 143 | 143 | 0 | 3 | 0 | 0 | 1 |
[55] † Vallesaurus cenensis Last Modified in 01/29/18 | 198 | 118 | 118 | 0 | 7 | 0 | 0 | 1 |
[56] † Boreopricea funerea Last Modified in 01/29/18 | 119 | 198 | 198 | 0 | 6 | 0 | 0 | 1 |
[57] † Colobops noviportensis Last Modified in 01/29/18 | 273 | 51 | 49 | 0 | 1 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 28320 | |
Documents list | 855 | |
Project overview | 1566 | |
Matrix views | 1143 | Matrix landing page (1028 views); Archosauromorph phylogeny (115 views); |
Media views | 7598 | Media search (2814 views); M470345 (429 views); M470346 (736 views); M470342 (476 views); M470343 (473 views); M470344 (443 views); M470347 (452 views); M470348 (436 views); M470349 (456 views); M470350 (456 views); M470351 (427 views); |
Taxon list | 11731 | |
Specimen list | 1727 | |
Views for media list | 3027 | |
Bibliography | 673 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 232 | |
Project downloads | 184 | |
Matrix downloads | 35 | Archosauromorph phylogeny (35 downloads); |
Media downloads | 2 | M470349 (1 download); M470345 (1 download); |
Document downloads | 11 | R Directory, including input spreadsheets and linear regression model data (4 downloads); Nexus file for MrBayes Input (3 downloads); Full Output of MrBayes analysis (4 downloads); |