Oligokyphus
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Oligokyphus was an advanced herbivorous cynodont of the late Triassic to late Jurassic periods. Originally considered to be an early mammal, it is now classified as a non-mammalian therapsid because Oligokyphus does not have the mammalian jaw attachments and it retains a vestigial joint between the quadrate bone and the squamosal bone in the skull.