Project 5172: R. B. Holmes, C. Forster, M. Ryan, K. M. Shepherd. 2001. A new species of Chasmosaurus (Dinosauria: Ceratopsia) from the Dinosaur Park Formation of southern Alberta. Canadian Journal of Earth Sciences. 38 (10):1423-1438.
Abstract
Chasmosaurus irvinensis (sp. nov.) is distinguished from other species of this genus by the possession of a broad snout, absence of a brow horn (the position of which is occupied by a pit or rugosities suggestive of bone resorption), broadly rounded and open jugal notch, subrectangular squamosal, straight posterior parietal bar bearing 10 epoccipitals, eight of which are flattened, strongly curved anterodorsally, and nearly indistinguishably coossified to their neighbours, and small, transversely oriented parietal fenestrae restricted to the posterior portion of the frill. This species, restricted to the upper part of the Dinosaur Park Formation, is significantly younger than the other recognized Canadian Chasmosaurus species, C. belli and C. russelli. Phylogenetic analysis shows that C. irvinensis is most closely related to the other Canadian Chasmosaurus species and more distantly related to Chasmosaurus mariscalensis from Texas.Read the article »
Article DOI: 10.1139/e01-036
Project DOI: 10.7934/P5172, http://dx.doi.org/10.7934/P5172
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 232 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 30 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 61 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:30/0 |
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MorphoBank Project 5172
MorphoBank Project 5172
- Creation Date:
29 March 2024 - Publication Date:
08 April 2024 - Project views: 394
- Media downloads: 1
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Shreya Jariwala Project Administrator | 9 | 3 | 3 | 30 | 0 | 0 | 232 (232, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29764' (9 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Protoceratops andrewsi Last Modified in 03/29/24 | 11 | 19 | 19 | 0 | 0 | 0 | 0 | 1 |
[2] † Zuniceratops christopheri Last Modified in 03/29/24 | 25 | 5 | 5 | 0 | 0 | 0 | 0 | 1 |
[3] † Centrosaurinae Last Modified in 03/29/24 | 1 | 31 | 29 | 0 | 0 | 0 | 0 | 1 |
[4] † Chasmosaurus irvinensis Last Modified in 03/29/24 | 1 | 30 | 29 | 0 | 0 | 0 | 0 | 1 |
[5] † Chasmosaurus belli Last Modified in 03/29/24 | 0 | 32 | 30 | 0 | 0 | 0 | 0 | 1 |
[6] † Chasmosaurus russelli Last Modified in 03/29/24 | 0 | 31 | 30 | 0 | 0 | 0 | 0 | 1 |
[7] † Chasmosaurus mariscalensis Last Modified in 03/29/24 | 7 | 23 | 23 | 0 | 0 | 0 | 0 | 1 |
[8] † Pentaceratops sternbergi Last Modified in 03/29/24 | 0 | 31 | 30 | 0 | 0 | 0 | 0 | 1 |
[9] † Chasmosaurinae Last Modified in 03/29/24 | 1 | 30 | 29 | 0 | 0 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 394 | |
Project overview | 34 | |
Matrix views | 33 | Matrix landing page (27 views); Holmes et al 2001 (6 views); |
Taxon list | 61 | |
Media views | 123 | Media search (81 views); M902793 (14 views); M902795 (15 views); M902794 (13 views); |
Documents list | 29 | |
Views for media list | 27 | |
Specimen list | 70 | |
Bibliography | 17 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 1 | |
Media downloads | 1 | M902795 (1 download); |