By Group‎ > ‎Gorgonopsia‎ > ‎

Arctognathus


Arctognathus is a small gorgonopsid characterized by a short and rounded snout. Two species, A. curvimola and A. breviceps are currently recognized with two other more questionable ones, A. cookei and A. nasuta.


Name


Arctognathus curvimola


Authority
   

(Owen, 1876) Broom, 1911 


Meaning of the generic name


Bear jaw


Size


Skull length: 18 cm ,Length: 1.1 m?


Remains


Holotype (BMNH 47339): badly preserved skull
Referred specimens: SAM 3329 (skull, holotype of Lycaenodontoides bathyrhinus); BPI 174 (skull, holotype of Lycaenops pricei)


Age and Distribution


Horizon: Cistecephalus assemblage zone, Beaufort group, Upper Permian (Wuchiapingian).
Type locality:
Karoo basin, South Africa.


Classification


Synapsida Therapsida Gorgonopsia Gorgonopsidae

  Further Reading

  Broom, R., 1911. On some New South African Permian Reptiles: Proceedings of the Zoological Society of London, 1911, p. 1073-1082.
Gebauer E., 2007. Phylogeny and Evolution of the Gorgonopsia with a Special Reference to the Skull and Skeleton of GPIT/RE/7113, doctoral dissertation.

 Synonyms

  Lycosaurus curvimola Owen, 1876; Aelurosaurus curvimola (Owen, 1876); Lycaenodontoides bathyrhinus Haughton, 1929; Lycaenops pricei Broom & Robinson, 1948





Name


Arctognathus breviceps


Authority
   

(Boonstra, 1934) 


Meaning of the generic name


Bear jaw


Size


Skull length: ,Length:


Remains


Holotype (SAM 9345): skull


Age and Distribution


Horizon: Cistecephalus assemblage zone, Beaufort group, Upper Permian (Wuchiapingian).
Type locality:
Karoo basin, South Africa.


Classification


Synapsida Therapsida Gorgonopsia Gorgonopsidae

  Further Reading

  Boonstra, L. D., 1934. A contribution to the morphology of the gorgonopsia: Annual of the South African Museum, v. 31, part 2, p. 137-174.
Gebauer E., 2007. Phylogeny and Evolution of the Gorgonopsia with a Special Reference to the Skull and Skeleton of GPIT/RE/7113, doctoral dissertation.

 Synonyms

  Arctognathoides breviceps Boonstra, 1934



Life reconstruction of Arctognathus curvimola (© N. Tamura)



Skull reconstruction based on the holotype (BMNH 47339) of Arctognathus curvimola. From gebauer, 2007. Scale bar is 2 cm.

Comments