Project 488: K. D. Angielczyk, B. S. Rubidge. 2010. A New Pylaecephalid Dicynodont (Therapsida, Anomodontia) from the Tapinocephalus Assemblage Zone, Karoo Basin, Middle Permian of South Africa. Journal of Vertebrate Paleontology. 30 (5):1396-1409.
Abstract
We describe Prosictodon dubei, gen. et sp. nov., from the Abrahamskraal Formation, Karoo Basin, Middle Permian of South Africa. Diagnostic characters of P. dubei include postorbitals that slope ventrolaterally and overlap the parietals nearly completely; median anterior palatal ridges that converge with the posterior median palatal ridge, forming a V-shaped structure; caniniform process with an anterior edge that is set off from the palatal rim forming a notch; ‘postcanine’ teeth present on the maxilla; a ventrally directed transverse flange of the pterygoid with an obtuse posterior margin; a short interpterygoid vacuity that does not reach the level of the palatine pads; a dentary table that forms an elongate grooved surface on the dorsal surface of the dentary, bounded laterally by a low ridge and medially by a tall, thin, dorsally convex blade; ‘postcanine’ teeth present on the dentary blade; and the absence of a posterior dentary sulcus. A phylogenetic analysis confirms that P. dubei is a member of Pylaecephalidae, although we cannot corroborate that it is the sister taxon of Diictodon feliceps. The holotype of P. dubei was collected low in the Tapinocephalus Assemblage Zone in the northwestern Karoo Basin, near the contact between the Ecca and Beaufort groups, within the stratigraphic range of Robertia but above the ranges of Eodicynodon and Colobodectes. On-going research suggests dicynodonts in the Tapinocephalus Assemblage Zone appeared in sequence (Colobodectes first; Lanthanostegus, Robertia, Prosictodon second; Diictodon and Pristerodon third), in contrast to earlier works that portrayed Diictodon, Robertia, and Pristerodon as occurring throughout the zone.Read the article »
Project DOI: 10.7934/P488, http://dx.doi.org/10.7934/P488
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 2207 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 75 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 200 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:75/0 |
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MorphoBank Project 488
MorphoBank Project 488
- Creation Date:
26 March 2011 - Publication Date:
16 July 2011 - Project views: 44947
- Media downloads: 5
- Matrix downloads: 11
Authors' Institutions
- Field Museum of Natural History
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
MorphoBank Curator Project Administrator | 38 | 0 | 0 | 75 | 0 | 0 | 2207 (2207, 0, 0) | 0 | 0 | 0 | ||||
Maureen Admin Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | ||||
Kenneth Angielczyk Full membership | 0 | 1 | 9 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M1087' (38 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Patranomodon Last Modified in 12/05/13 | 25 | 50 | 50 | 0 | 0 | 0 | 0 | 3 |
[2] Otsheria Last Modified in 12/05/13 | 36 | 39 | 39 | 0 | 0 | 0 | 0 | 3 |
[3] Eodicynodon Last Modified in 12/05/13 | 0 | 75 | 75 | 0 | 0 | 0 | 0 | 3 |
[4] Diictodon Last Modified in 12/05/13 | 1 | 75 | 74 | 0 | 0 | 0 | 0 | 3 |
[5] Endothiodon Last Modified in 12/05/13 | 5 | 70 | 70 | 0 | 0 | 0 | 0 | 3 |
[6] Chelydontops Last Modified in 12/05/13 | 22 | 54 | 53 | 0 | 0 | 0 | 0 | 3 |
[7] Pristerodon Last Modified in 12/05/13 | 2 | 74 | 73 | 0 | 0 | 0 | 0 | 3 |
[8] Emydops Last Modified in 12/05/13 | 11 | 64 | 64 | 0 | 0 | 0 | 0 | 3 |
[9] Dicynodontoides Last Modified in 12/05/13 | 3 | 73 | 72 | 0 | 0 | 0 | 0 | 3 |
[10] Cistecephalus Last Modified in 12/05/13 | 2 | 73 | 73 | 0 | 0 | 0 | 0 | 3 |
[11] Myosaurus Last Modified in 12/05/13 | 18 | 58 | 57 | 0 | 0 | 0 | 0 | 3 |
[12] Tropidostoma Last Modified in 12/05/13 | 2 | 73 | 73 | 0 | 0 | 0 | 0 | 3 |
[13] Oudenodon Last Modified in 12/05/13 | 1 | 74 | 74 | 0 | 0 | 0 | 0 | 3 |
[14] Rhachiocephalus Last Modified in 12/05/13 | 6 | 70 | 69 | 0 | 0 | 0 | 0 | 3 |
[15] Geikia locusticeps Last Modified in 12/05/13 | 18 | 57 | 57 | 0 | 0 | 0 | 0 | 3 |
[16] Aulacephalodon Last Modified in 12/05/13 | 2 | 75 | 73 | 0 | 0 | 0 | 0 | 3 |
[17] Dicynodon lacerticeps Last Modified in 12/05/13 | 19 | 56 | 56 | 0 | 0 | 0 | 0 | 3 |
[18] Lystrosaurus Last Modified in 12/05/13 | 1 | 75 | 74 | 0 | 0 | 0 | 0 | 3 |
[19] Kannemeyeria Last Modified in 12/05/13 | 1 | 74 | 74 | 0 | 0 | 0 | 0 | 3 |
[20] Idelesaurus Last Modified in 12/05/13 | 22 | 53 | 53 | 0 | 0 | 0 | 0 | 3 |
[21] Interpresosaurus Last Modified in 12/05/13 | 54 | 21 | 21 | 0 | 0 | 0 | 0 | 3 |
[22] Elph Last Modified in 12/05/13 | 32 | 43 | 43 | 0 | 0 | 0 | 0 | 3 |
[23] "Dicynodon" trautscholdi Last Modified in 12/05/13 | 22 | 53 | 53 | 0 | 0 | 0 | 0 | 3 |
[24] Delectosaurus Last Modified in 12/05/13 | 27 | 49 | 48 | 0 | 0 | 0 | 0 | 3 |
[25] Vivaxosaurus Last Modified in 12/05/13 | 19 | 56 | 56 | 0 | 0 | 0 | 0 | 3 |
[26] "Dicynodon" amaltizkii Last Modified in 12/05/13 | 39 | 36 | 36 | 0 | 0 | 0 | 0 | 3 |
[27] Australobarbarus Last Modified in 12/05/13 | 20 | 57 | 55 | 0 | 0 | 0 | 0 | 3 |
[28] Colobodectes Last Modified in 12/05/13 | 28 | 47 | 47 | 0 | 0 | 0 | 0 | 3 |
[29] "Robertia" sp. Last Modified in 12/05/13 | 22 | 53 | 53 | 0 | 0 | 0 | 0 | 3 |
[30] Robertia broomiana Last Modified in 12/05/13 | 2 | 73 | 73 | 0 | 0 | 0 | 0 | 3 |
[31] Kombuisia Last Modified in 12/05/13 | 30 | 45 | 45 | 0 | 0 | 0 | 0 | 3 |
[32] Cistecephaloides Last Modified in 12/05/13 | 25 | 50 | 50 | 0 | 0 | 0 | 0 | 3 |
[33] Kawingasaurus Last Modified in 12/05/13 | 11 | 64 | 64 | 0 | 0 | 0 | 0 | 3 |
[34] † Prosictodon Last Modified in 12/05/13 | 25 | 50 | 50 | 0 | 0 | 0 | 0 | 3 |
[35] Katumbia Last Modified in 12/05/13 | 22 | 53 | 53 | 0 | 0 | 0 | 0 | 3 |
[36] Odontocyclops Last Modified in 12/05/13 | 5 | 71 | 70 | 0 | 0 | 0 | 0 | 3 |
[37] Pelanomodon Last Modified in 12/05/13 | 27 | 48 | 48 | 0 | 0 | 0 | 0 | 3 |
[38] Lanthanostegus Last Modified in 12/05/13 | 49 | 26 | 26 | 0 | 0 | 0 | 0 | 3 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 44947 | |
Project overview | 3244 | |
Matrix views | 2328 | Matrix landing page (2038 views); A New Pylaecephalid Dicynodont (Therapsida, Anomodontia) from the Tapinocephalus Assemblage Zone, Karoo Basin, Middle Permian of South Africa (290 views); |
Media views | 13998 | M85668 (908 views); Media search (5807 views); M85671 (865 views); M85663 (934 views); M85665 (903 views); M85664 (894 views); M85666 (1025 views); M85669 (911 views); M85670 (890 views); M85667 (861 views); |
Specimen list | 3452 | |
Taxon list | 18980 | |
Documents list | 1671 | |
Bibliography | 1274 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 382 | |
Matrix downloads | 11 | A New Pylaecephalid Dicynodont (Therapsida, Anomodontia) from the Tapinocephalus Assemblage Zone, Karoo Basin, Middle Permian of South Africa (11 downloads); |
Media downloads | 5 | M85669 (2 downloads); M85671 (1 download); M85666 (1 download); M85667 (1 download); |
Project downloads | 365 | |
Document downloads | 1 | Copyright information for exemplar media (1 download); |