Project 5167: N. R. Longrich. 2010. Mojoceratops perifania, a new chasmosaurine ceratopsid from the late Campanian of Western Canada. Journal of Paleontology. 84 (4):681-694.
Abstract
A new genus of long-horned chasmosaurine ceratopsid is described from the Dinosaur Park Formation (upper Campanian) of Western Canada. Mojoceratops perifania is represented by a skull and a parietal from the Dinosaur Park Formation of Alberta and an isolated parietal from the Dinosaur Park Formation of Saskatchewan. Several other specimens are provisionally referred to this taxon. While Mojoceratops shares many plesiomorphies with Chasmosaurus, the animal lacks the forward-curving parietal epoccipitals and reduced postorbital horns that diagnose the genus Chasmosaurus, and it differs from all other chasmosaurines in exhibiting a prominent sulcus on the anterior margin of the parietal, swellings on the anterodorsal surface of the parietal rami, and a small accessory process on the first parietal epoccipital. Other unusual features include anteriorly extended parietal fenestrae, a broad, heart-shaped frill, and transverse expansion of the postfrontal fontanelle. The type material of "Eoceratops canadensis" and "Chasmosaurus kaiseni" are nondiagnostic and these names are therefore considered nomina dubia, but their morphology is consistent with Mojoceratops and they probably belong to this genus. The frill of Mojoceratops shows marked variation. Some of this variation probably results from intraspecific variation or ontogenetic changes, but because the Dinosaur Park Formation encompasses more than a million years of time, evolution may explain some of these differences. Phylogenetic analysis shows that Mojoceratops forms a clade with Agujaceratops mariscalensis; Chasmosaurus is the most basal member of Chasmosaurinae.Read the article »
Article DOI: 10.1666/09-114.1
Project DOI: 10.7934/P5167, http://dx.doi.org/10.7934/P5167
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 1698 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 119 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 244 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:119/0 |
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MorphoBank Project 5167
MorphoBank Project 5167
- Creation Date:
28 March 2024 - Publication Date:
08 April 2024 - Project views: 1248
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Shreya Jariwala Project Administrator | 19 | 6 | 6 | 119 | 0 | 0 | 1698 (1568, 0, 130) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29760' (19 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 03/28/24 | 11 | 85 | 85 | 0 | 23 | 0 | 0 | 1 |
[2] † Leptoceratopsidae Last Modified in 03/28/24 | 17 | 77 | 77 | 0 | 25 | 0 | 0 | 1 |
[3] † Zuniceratops christopheri Last Modified in 03/28/24 | 79 | 23 | 23 | 0 | 17 | 0 | 0 | 1 |
[4] † Turanoceratops tardabilis Last Modified in 03/28/24 | 105 | 12 | 12 | 0 | 2 | 0 | 0 | 1 |
[5] † Avaceratops lammersi Last Modified in 03/28/24 | 54 | 57 | 57 | 0 | 8 | 0 | 0 | 1 |
[6] † Centrosaurus apertus Last Modified in 03/28/24 | 0 | 110 | 110 | 0 | 9 | 0 | 0 | 1 |
[7] † Styracosaurus albertensis Last Modified in 03/28/24 | 7 | 102 | 102 | 0 | 10 | 0 | 0 | 1 |
[8] † Einiosaurus procurvicornis Last Modified in 03/28/24 | 15 | 93 | 93 | 0 | 11 | 0 | 0 | 1 |
[9] † Achelousaurus horneri Last Modified in 03/28/24 | 16 | 91 | 91 | 0 | 12 | 0 | 0 | 1 |
[10] † Pachyrhinosaurus spp Last Modified in 03/28/24 | 9 | 98 | 98 | 0 | 12 | 0 | 0 | 1 |
[11] † Chasmosaurus spp Last Modified in 03/28/24 | 1 | 120 | 118 | 0 | 0 | 0 | 0 | 1 |
[12] † Mojoceratops perifania Last Modified in 03/28/24 | 80 | 39 | 39 | 0 | 0 | 0 | 0 | 1 |
[13] † Agujaceratops mariscalensis Last Modified in 03/28/24 | 17 | 103 | 102 | 0 | 0 | 0 | 0 | 1 |
[14] † Pentaceratops sternbergii Last Modified in 03/28/24 | 4 | 115 | 115 | 0 | 0 | 0 | 0 | 1 |
[15] † Anchiceratops ornatus Last Modified in 03/28/24 | 15 | 104 | 104 | 0 | 0 | 0 | 0 | 1 |
[16] † Arrhinoceratops brachyops Last Modified in 03/28/24 | 42 | 77 | 77 | 0 | 0 | 0 | 0 | 1 |
[17] † Torosaurus spp. Last Modified in 03/28/24 | 23 | 96 | 96 | 0 | 0 | 0 | 0 | 1 |
[18] † Triceratops spp. Last Modified in 03/28/24 | 0 | 118 | 118 | 0 | 1 | 0 | 0 | 1 |
[19] † Eotriceratops xerinsularis Last Modified in 03/28/24 | 71 | 48 | 48 | 0 | 0 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 1248 | |
Matrix views | 31 | Matrix landing page (24 views); Longrich 2010 (7 views); |
Project overview | 30 | |
Media views | 173 | Media search (82 views); M902779 (16 views); M902775 (15 views); M902776 (16 views); M902777 (15 views); M902778 (14 views); M902780 (15 views); |
Documents list | 23 | |
Bibliography | 21 | |
Taxon list | 384 | |
Views for media list | 439 | |
Specimen list | 147 |