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Scylacosauridae
Taxonomy
Scylacosauridae was named by Broom (1903). It is not extant.
It was assigned to Therocephalia by Broom (1903); to Pristerosauria by Battail and Surkov (2000); to Scylacosauroidea by Tatarinov (2008); to Therocephalia by Abdala et al. (2008); and to Scylacosaurida by Ivakhnenko (2011).
It was assigned to Therocephalia by Broom (1903); to Pristerosauria by Battail and Surkov (2000); to Scylacosauroidea by Tatarinov (2008); to Therocephalia by Abdala et al. (2008); and to Scylacosaurida by Ivakhnenko (2011).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1903 | Scylacosauridae Broom p. 292 |
| 2000 | Scylacosauridae Battail and Surkov |
| 2008 | Scylacosauridae Abdala et al. p. 1012 |
| 2008 | Scylacosauridae Tatarinov |
| 2011 | Scylacosauridae Ivakhnenko |
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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.
Fm. †Scylacosauridae Broom 1903
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Invalid names: Scylacosaurinae Broom 1903 [empty]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. Broom 1903 | Distinct postfrontals present. Teeth on pterygoids, but not on palatines or prevomers. More than one canine in each maxillary. | |
| F. Abdala et al. 2008 | Large therocephalians (with maximum skull length around 400 mm) presenting the following combination of characters: snout long and narrow; anterior border of the orbit on transverse midline of the skull; interorbital region narrow; suborbital bar shallow; most of them showing precanines; incisors varying from six to seven uppers and three lowers; five to nine upper postcanines; presence of serrations on the teeth; teeth on pterygoid boss; premaxilla with vomerine process; ventromedial crest on posterior portion of the vomer; choana long; crista choanalis well developed; ventromedian crest on pterygoid; interpterygoid vacuity narrow; basal tubera small; presence of an angle in the posteroventral region of the dentary. |