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''Australosyodon'' is an extinct genus of dinocephalian therapsid from the middle Permian of South Africa. The first fossil was discovered in the 1980s near the village of Prince Albert Road in the Karoo region of South Africa.〔(【引用サイトリンク】title= Palaeontologists find South America's oldest predator )〕 The genus is closely related to the genus ''Syodon'', found in the Russian Ischejewo fauna, and is thus regarded as the earliest example of an anteosaurid Dinocephalia outside of Russia. ''Australosyodon'' fossils have been recovered from the Eodicynodon Assemblage Zone, the lowest bank of the South African Beaufort Group, indicating the presence of primitive early therapsids in the southern hemisphere. The genus was first described by Bruce S. Rubidge in 1994. == Description == ''Australosyodon'' was a medium-sized dinocephalian. The skull was high and narrow, with a length of 26 cm, indicating a total body length of approximately 1.8 m (6 ft). The top of the skull displayed the thickening typical of dinocephalians. Overall there are many similarities to the skull of ''Syodon'', although some minor differences in shape and in the extent of pachyostosis are present. The fangs were laterally compressed and featured a rearward-facing central cutting edge. Shape, number and arrangement of teeth are among the characteristics that allow distinguishing ''Australosyodon'' from ''Syodon''.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Australosyodon」の詳細全文を読む スポンサード リンク
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