Project 4149: C. Marsicano, K. D. Angielczyk, J. C. Cisneros, M. Richter, C. F. Kammerer, J. Fröbisch, R. M. Smith. 2021. Brazilian Permian dvinosaurs (Amphibia, Temnospondyli): revised description and phylogeny. Journal of Vertebrate Paleontology. 41 (1):null.
Abstract
Recently collected temnospondyl fossils from the Cisuralian Pedra de Fogo Formation (north-eastern Brazil) indicate a diverse assemblage of aquatic tetrapods, including the dvinosaurs Timonya anneae and Procuhy nazariensis. Here we present revised diagnoses for these species and detailed descriptions of their holotypes. Timonya anneae is distinguished from all other dvinosaurs by several cranial characters including: combined width of both parietals less than interorbital width; presence of a groove-like internal carotid artery foramen; and presence of an ossified opisthotic. In the mandible, T. anneae presents two parasymphyseal fossae on each side of the mandibular symphysis to accommodate palatal fangs and a well-developed postglenoid area. Procuhy nazariensis, mostly preserved as a mold of the skull table and mandible, is diagnosed by the presence of the anteriormost extension of the squamosal posterior to parietal midlength; pineal foramen posterior to the midlength of the parietal; supratemporal exposed on the posterior border of the skull table; and presence of postglenoid process of the surangular separated from the retroarticular process of the articular by the mandibular sulcus. A new inclusive phylogeny of Temnospondyli indicates that Dvinosauria consists of the Trimerorhachidae (including Procuhy as the sister-taxon of Trimerorhachis) and the ‘short-snouted’ dvinosaurs, with Timonya as an early-diverging representative of the latter clade. The Pedra de Fogo dvinosaurs show close relationships with Cisuralian taxa from the North American southwest, reinforcing close paleogeographic connections between these regions in the late Paleozoic, but represent endemic taxa, corroborating the pattern suggested by the plant fossil record.Read the article »
Article DOI: 10.1080/02724634.2021.1893181
Project DOI: 10.7934/P4149, http://dx.doi.org/10.7934/P4149
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 5881 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 178 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 418 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:178/0 |
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MorphoBank Project 4149
MorphoBank Project 4149
- Creation Date:
10 December 2021 - Publication Date:
10 December 2021 - Project views: 7207
- Matrix downloads: 3
Authors' Institutions
- Iziko South African Museum, Cape Town
- Museum für Naturkunde - Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin
- Natural History Museum, London
- North Carolina Museum of Natural Sciences, Raleigh
- Humboldt-Universitaet zu Berlin (Humboldt University Berlin)
- University of the Witwatersrand
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
- IDEAN
- Universidad de Buenos Aires
- Field Museum of Natural History
- Universidade Federal do Piauí
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
MorphoBank Curator Project Administrator | 40 | 1 | 1 | 178 | 0 | 0 | 5881 (5803, 0, 78) | 0 | 0 | 0 | ||||
Jörg Fröbisch Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | ||||
Christian Kammerer Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | ||||
Martha Richter Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | ||||
Roger Smith Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M27727' (40 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Crassigyrinus scoticus Last Modified in 12/10/21 | 21 | 153 | 153 | 0 | 4 | 0 | 0 | 5 |
[2] † Greererpeton burkermorani Last Modified in 12/10/21 | 4 | 172 | 172 | 0 | 2 | 0 | 0 | 5 |
[3] † Caerorhachis bairdi Last Modified in 12/10/21 | 54 | 123 | 123 | 0 | 1 | 0 | 0 | 5 |
[4] † Proterogyrinus scheelei Last Modified in 12/10/21 | 16 | 159 | 159 | 0 | 3 | 0 | 0 | 5 |
[5] † Eucritta melanolimnetes Last Modified in 12/10/21 | 70 | 105 | 105 | 0 | 3 | 0 | 0 | 5 |
[6] † Edops craigi Last Modified in 12/10/21 | 23 | 155 | 155 | 0 | 0 | 0 | 0 | 5 |
[7] † Adamanterpeton ohioensis Last Modified in 12/10/21 | 53 | 123 | 123 | 0 | 2 | 0 | 0 | 5 |
[8] † Nigerpeton ricqlesi Last Modified in 12/10/21 | 63 | 114 | 114 | 0 | 1 | 0 | 0 | 5 |
[9] † Chenoprosopus lewisi Last Modified in 12/10/21 | 59 | 119 | 119 | 0 | 0 | 0 | 0 | 5 |
[10] † Cochleosaurus bohemicus Last Modified in 12/10/21 | 33 | 143 | 143 | 0 | 2 | 0 | 0 | 5 |
[11] † Capetus palustris Last Modified in 12/10/21 | 58 | 119 | 119 | 0 | 1 | 0 | 0 | 5 |
[12] † Saharastega moradiensis Last Modified in 12/10/21 | 62 | 114 | 114 | 0 | 2 | 0 | 0 | 5 |
[13] † Acanthostomatops vorax Last Modified in 12/10/21 | 36 | 140 | 140 | 0 | 2 | 0 | 0 | 5 |
[14] † Eryops megacephalus Last Modified in 12/10/21 | 1 | 177 | 177 | 0 | 0 | 0 | 0 | 5 |
[15] † Balanerpeton woodi Last Modified in 12/10/21 | 17 | 160 | 160 | 0 | 1 | 0 | 0 | 5 |
[16] † Dendrerpeton acadianum Last Modified in 12/10/21 | 36 | 142 | 142 | 0 | 0 | 0 | 0 | 5 |
[17] † Dvinosaurus primus Last Modified in 12/10/21 | 2 | 172 | 172 | 0 | 4 | 0 | 0 | 5 |
[18] † Erpetosaurus radiatus Last Modified in 12/10/21 | 41 | 136 | 136 | 0 | 1 | 0 | 0 | 5 |
[19] † Neldasaurus wrightae Last Modified in 12/10/21 | 21 | 155 | 155 | 0 | 2 | 0 | 0 | 5 |
[20] † Trimerorhachis insignis Last Modified in 12/10/21 | 2 | 175 | 175 | 0 | 1 | 0 | 0 | 5 |
[21] † Timonya anneae Last Modified in 12/10/21 | 26 | 148 | 148 | 0 | 4 | 0 | 0 | 5 |
[22] † Acroplous vorax Last Modified in 12/10/21 | 9 | 165 | 165 | 0 | 4 | 0 | 0 | 5 |
[23] † Thabanchuia oomie Last Modified in 12/10/21 | 24 | 149 | 149 | 0 | 5 | 0 | 0 | 5 |
[24] † Perryella olsoni Last Modified in 12/10/21 | 45 | 130 | 130 | 0 | 3 | 0 | 0 | 5 |
[25] † Micropholis stowi Last Modified in 12/10/21 | 7 | 168 | 168 | 0 | 3 | 0 | 0 | 5 |
[26] † Sclerocephalus haeuseri Last Modified in 12/10/21 | 3 | 174 | 174 | 0 | 1 | 0 | 0 | 5 |
[27] † Archegosaurus decheni Last Modified in 12/10/21 | 8 | 169 | 169 | 0 | 1 | 0 | 0 | 5 |
[28] † Uranocentrodon senekalensis Last Modified in 12/10/21 | 13 | 164 | 164 | 0 | 1 | 0 | 0 | 5 |
[29] † Australerpeton cosgriffi Last Modified in 12/10/21 | 7 | 171 | 171 | 0 | 0 | 0 | 0 | 5 |
[30] † Lydekkerina huxleyi Last Modified in 12/10/21 | 2 | 176 | 176 | 0 | 0 | 0 | 0 | 5 |
[31] † Laidleria gracilis Last Modified in 12/10/21 | 36 | 137 | 137 | 0 | 5 | 0 | 0 | 5 |
[32] † Batrachosuchus browni Last Modified in 12/10/21 | 64 | 110 | 110 | 0 | 4 | 0 | 0 | 5 |
[33] † Benthosuchus sushkini Last Modified in 12/10/21 | 2 | 176 | 176 | 0 | 0 | 0 | 0 | 5 |
[34] † Mastodonsaurus giganteus Last Modified in 12/10/21 | 13 | 164 | 164 | 0 | 1 | 0 | 0 | 5 |
[35] † Thoosuchus yakovlevi Last Modified in 12/10/21 | 28 | 150 | 150 | 0 | 0 | 0 | 0 | 5 |
[36] † Metoposaurus diagnosticus Last Modified in 12/10/21 | 1 | 177 | 177 | 0 | 0 | 0 | 0 | 5 |
[37] † Procuhy nazariensis Last Modified in 12/10/21 | 140 | 37 | 37 | 0 | 1 | 0 | 0 | 5 |
[38] † Isodectes obtusus Last Modified in 12/10/21 | 55 | 119 | 119 | 0 | 4 | 0 | 0 | 5 |
[39] † Trypanognathus remigiusbergensis Last Modified in 12/10/21 | 46 | 127 | 127 | 0 | 5 | 0 | 0 | 5 |
[40] † Tupilakosaurus wetlugensis Last Modified in 12/10/21 | 38 | 136 | 136 | 0 | 4 | 0 | 0 | 5 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 7207 | |
Project overview | 534 | |
Matrix views | 431 | Matrix landing page (397 views); Data matrix from supplemental material (34 views); |
Bibliography | 304 | |
Media views | 1468 | Media search (1235 views); M834713 (233 views); |
Taxon list | 3289 | |
Specimen list | 736 | |
Views for media list | 437 | |
Documents list | 8 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 31 | |
Project downloads | 28 | |
Matrix downloads | 3 | Data matrix from supplemental material (3 downloads); |