Project 5124: H. C. Maddin, C. A. Sidor, R. R. Reisz. 2008. Cranial anatomy of Ennatosaurus tecton (Synapsida: Caseidae) from the Middle Permian of Russia and the evolutionary relationships of Caseidae. Journal of Vertebrate Paleontology. 28 (1):160-180.
Abstract
Detailed description of the Middle Permian Russian caseid Ennatosaurus tecton shows that three autapomorphies distinguish it from other caseids: a broad anterior ramus of the jugal, a large contribution of the frontal to the dorsal orbital margin, and a relatively narrow parasphenoid body. Phylogenetic analysis of Caseidae yields a single most parsimonious tree and its topology posits Ennatosaurus tecton as the sister taxon to the clade of the North American caseids Angelosaurus dolani and Cotylorhynchus romeri. Phylogenetic analysis supports the position of Oromycter dolesorum from the Lower Permian Richards Spur locality as the most basal member of Caseidae. In addition, the genus Casea is resolved as paraphyletic, whereby C. rutena forms the sister taxon to the clade containing E. tecton, C. romeri, and A. dolani. The current topology reveals that the pattern of dental complexity in terms of the number of apical cuspules is homoplasious, cautioning against its use as a unidirectional phylogenetic character.Read the article »
Article DOI: 10.1671/0272-4634(2008)28[160:caoets]2.0.co;2
Project DOI: 10.7934/P5124, http://dx.doi.org/10.7934/P5124
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 998 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 106 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 240 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:106/0 |
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MorphoBank Project 5124
MorphoBank Project 5124
- Creation Date:
11 March 2024 - Publication Date:
13 March 2024 - Project views: 820
Authors' Institutions
- University of Toronto
- University of Washington
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Shreya Jariwala Project Administrator | 12 | 5 | 5 | 106 | 0 | 0 | 998 (998, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29702' (12 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Mycterosaurus Last Modified in 03/11/24 | 28 | 78 | 78 | 0 | 0 | 0 | 0 | 1 |
[2] † Varanops Last Modified in 03/11/24 | 8 | 98 | 98 | 0 | 0 | 0 | 0 | 1 |
[3] † Eothyris Last Modified in 03/11/24 | 42 | 64 | 64 | 0 | 0 | 0 | 0 | 1 |
[4] † Oromycter Last Modified in 03/11/24 | 84 | 22 | 22 | 0 | 0 | 0 | 0 | 1 |
[5] † Casea broilii Last Modified in 03/11/24 | 14 | 92 | 92 | 0 | 0 | 0 | 0 | 1 |
[6] † Casea rutena Last Modified in 03/11/24 | 19 | 87 | 87 | 0 | 0 | 0 | 0 | 1 |
[7] † Cotylorhynchus Last Modified in 03/11/24 | 1 | 105 | 105 | 0 | 0 | 0 | 0 | 1 |
[8] † Angelosaurus Last Modified in 03/11/24 | 61 | 45 | 45 | 0 | 0 | 0 | 0 | 1 |
[9] † Ennatosaurus Last Modified in 03/11/24 | 12 | 94 | 94 | 0 | 0 | 0 | 0 | 1 |
[10] Reptilia Last Modified in 03/11/24 | 5 | 111 | 101 | 0 | 0 | 0 | 0 | 1 |
[11] † Diadectes Last Modified in 03/11/24 | 5 | 101 | 101 | 0 | 0 | 0 | 0 | 1 |
[12] † Limnoscelis Last Modified in 03/11/24 | 5 | 101 | 101 | 0 | 0 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 820 | |
Project overview | 42 | |
Views for media list | 41 | |
Matrix views | 30 | Matrix landing page (30 views); |
Specimen list | 193 | |
Media views | 242 | Media search (135 views); M902604 (22 views); M902603 (22 views); M902606 (22 views); M902602 (21 views); M902605 (20 views); |
Documents list | 36 | |
Taxon list | 211 | |
Bibliography | 25 |