| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Therochelonia (disused)
Taxonomy
Therochelonia was named by Seeley (1895). It is not extant.
It was reranked as the unranked clade Therochelonia by Kammerer and Angielczyk (2009) and Fröbisch and Reisz (2011).
It was assigned to Anomodontia by Seeley (1895); and to Dicynodontia by Kammerer and Angielczyk (2009) and Fröbisch and Reisz (2011).
It was reranked as the unranked clade Therochelonia by Kammerer and Angielczyk (2009) and Fröbisch and Reisz (2011).
It was assigned to Anomodontia by Seeley (1895); and to Dicynodontia by Kammerer and Angielczyk (2009) and Fröbisch and Reisz (2011).
Synonymy list
| Year | Name and author |
|---|---|
| 1895 | Therochelonia Seeley |
| 2009 | Therochelonia Kammerer and Angielczyk |
| 2011 | Therochelonia Fröbisch and Reisz |
Is something missing? Join the Paleobiology Database and enter the data
|
|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Unr. †Therochelonia Seeley 1895
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. G. Seeley 1895 | In this order of animals there is general resemblance in the plan of the palate to Chelonia, which distinguishes it from the Therosuchia, while some parts of the skeleton approximate towards mammals. The pterygoid bones meet in the middle line of the palate behind the posterior nares without being divided by an intervening sphenoidal keel or bar. The palatine bones are not developed transversely outward and downward to form an arch behind the palato-nares. There is no platform of a truncated hard palate covering the front of the posterior nares. The external occipital plate is more or less vertical. The single occipital condyle is often tripartite. The large quadrate bones, covered externally by the squamosal, form the articulation for the lower jaw. | |
| C. F. Kammerer and K. D. Angielczyk 2009 | Autapomorphies of Therochelonia recognized in common by Angielczyk (2007), Fröbisch (2007), and Fröbisch & Reisz (2008) are: (1) stapedial facet of the basisphenoid-basioccipital tuber exposed ventrolaterally; (2) proximal articular surface of the femur present as a rounded, hemispherical swelling that has some encroachment on the anterior surface of the femur. |
Measurements
No measurements are available
|
|
||||
|
|||||
|
|||||
|
|
||||
| Source: o = order, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Hendy et al. 2009, Carroll 1988, Benton 1983 | |||||
Collections
No collection or age range data are available