Aelurognathus

Aelurognathus
Temporal range: Wuchiapingian, 260.9–254 Ma
Holotype skull of A. tigriceps
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Clade: Therapsida
Clade: Gorgonopsia
Family: Gorgonopsidae
Subfamily: Rubidgeinae
Genus: Aelurognathus
Haughton, 1924
Type species
Scymnognathus tigriceps
Broom and Haughton, 1913
Synonyms

Genus-level

  • Gorgonorhinus Broom, 1937
  • Leontocephalus Broom, 1940
  • Prorubidgea Broom, 1940
  • Tigricephalus Broom, 1948

Species-level

  • Scymnognathus serratidens Haughton, 1915
  • Gorgorhinus luckhoffi Broom, 1937
  • Leontocephalus cadlei Broom, 1940
  • Prorubidgea maccabei Broom, 1940
  • Sycosaurus brodiei Broom, 1941
  • Gorgorhinus minor Broom, 1948
  • Tigricephalus kingwilli Broom, 1948
  • Lycaenops alticeps Brink & Kitching, 1953
  • Prorubidgea brinki Manten, 1959
  • Aelurognathus broodei Gebauer, 2007

Aelurognathus is an extinct genus of gorgonopsian therapsids from the Permian of South Africa and Zambia.[1]

Discovery

A. tigriceps restoration
A. sp. skull at the Museum für Naturkunde, Berlin

The type species is Aelurognathus tigriceps, originally named Scymnognathus tigriceps by South African paleontologists Robert Broom and Sydney H. Haughton in 1913, and later assigned to the new genus Aelurognathus by Haughton in 1924.

Scymnognathus parringtoni von Huene, 1950, previously assigned to Aelurognathus, is now classified as a species of Sauroctonus.[2] Aelurognathus nyasaensis Haughton, 1926 is not referable to the genus.[1]

Palaeobiology

A broken tooth beside the skeleton of a dicynodont from the Tropidostoma Assemblage Zone has been attributed to Aelurognathus, indicating that it scavenged. The bones of the back of the skeleton are the most scattered, suggesting that the Aelurognathus individuals fed on the rear of the carcass, removing the hind limbs to reach the soft underside. The small incisor teeth of Aelurognathus indicate that it was not able to crush bone but more likely stripped flesh from its prey like the modern-day wild dog Lycaon pictus. Bite marks on the bones of the skeleton were unlikely to have been made by Aelurognathus and may be an indication that another predator killed the dicynodont.[3]

Classification

Below is a cladogram from the phylogenetic analysis of Gebauer (2007):[4]

Restoration
Gorgonopsia

References

  1. ^ a b Kammerer CF. (2016) Systematics of the Rubidgeinae (Therapsida: Gorgonopsia) PeerJ 4:e1608 https://doi.org/10.7717/peerj.1608
  2. ^ Gebauer E I, 2014. Re-assessment of the taxonomic position of the specimen GPIT/RE/7113 (Sauroctonus parringtoni comb. nov., Gorgonopsia). In: Kammerer C F, Angielczyk K D, Fröbisch J eds. Early Evolutionary History of the Synapsida. Dordrecht: Springer. 185−207.
  3. ^ Fordyce, N.; Smith, R.; Chinsamy, A. (2012). "Evidence of a therapsid scavenger in the Late Permian Karoo Basin, South Africa". South African Journal of Science. 108 (11/12). doi:10.4102/sajs.v108i11/12.1158. hdl:11427/29098.
  4. ^ Gebauer, E.V.I. (2007). Phylogeny and evolution of the Gorgonopsia with a special reference to the skull and skeleton of GPIT/RE/7113 ("Aelurognathus"? parringtoni) (PDF) (Thesis). Dissertation Universität Tübingen.


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