Tuesday 26 November 2013

Dinogorgon

Dinogorgon is a poorly defined genus of saber-toothed gorgonopsids from South Africa and Tanzania. The type species, D. rubidgei, is only known from a fragment of snout and is undiagnosable making it a probable nomen dubium. The other two species are known from relatively well preserved skulls which are very similar in appearance to Rubidgea and it is possible that the two genera are in fact synonyms.

I Name
Dinogorgon rubidgei
Authority
Broom, 1936
Meaning of generic name
Terrible gorgon
Size
Skull length: 32 cm ,Length: 2 m?
Remains
Holotype (RC 1): snout
Age and Distribution
Horizon: Cistecephalus-Dicynodon assemblage zone, Beaufort group, Upper Permian (Wuchiapingian).

Type locality: Karoo basin, South Africa.
Classification
Synapsida Therapsida Gorgonopsia Gorgonopsidae Rubidgeinae
Further Reading
Broom, R., 1936, On some new genera and species of Karroo fossil Reptiles, with notes on some others: Annals of the Transvaal Museum, v. 18, part 4, p. 349-386.

Sigogneau, D., 1970. Revision Systematique des Gorgonopsiens Sud-Africains: Cahiers de Paleontologie, 414pp.

Gebauer E., 2007. Phylogeny and Evolution of the Gorgonopsia with a Special Reference to the Skull and Skeleton of GPIT/RE/7113, doctoral dissertation.
Image of D. rubidgei by Nobu Tamura (click to enlarge)
Dinogorgon rubidgei:
II Name
Dinogorgon quinquemolaris
Authority
von Huene, 1950
Size
Skull length: 41 cm ,Length: 2.2 m?
Remains
Holotype (GPIT/RE/3430): nearly complete skull

Referred specimen: RC 103 (nearly complete skull. Holotype of D. oudebergensis)
Age and Distribution
Horizon: Upper Permian

Locality: Tanzania and South Africa.
Classification
Synapsida Therapsida Gorgonopsia Gorgonopsidae Rubidgeinae
Further Reading
Huene, F. von, 1950. Die Theriodontier der ostafrikanischen Ruhuhu-Gebietes in der Tubinger Sammlung: Neües Jahrbuch fur Geologie und Palaontologie, Abhandlungen, v. 82, part 1, p. 47-136.

Sigogneau, D., 1970 and Gebauer E., 2007 as above.
Synonyms
Dinogorgon oudebergensis Brink & Kitching, 1953
III Name
Dinogorgon pricei
Authority
(Broom & George, 1950)
Size
Skull length: 32 cm ,Length: 1.7 m?
Remains
Holotype (BPI 225): incomplete skull
Age and Distribution
Horizon: Cistecephalus-Dicynodon assemblage zone, Beaufort group, Upper Permian (Wuchiapingian).

Type locality: Karoo basin, South Africa.
Classification
Synapsida Therapsida Gorgonopsia Gorgonopsidae Rubidgeinae
Further Reading
Broom, R., and George, M., 1950, Two new gorgonopsians genera from the Bernard Price collections: South African Journal of Science, v. 46, n. 6, p. 188-190.

Sigogneau, D., 1970 and Gebauer E., 2007 as above.
Synonyms
Tigrisaurus pricei Broom & George, 1950

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