Robertia was a small, primitive dicynodont, one the earlier members of this group. The type species R. broomiana was named in 1948. It is known from the Tapinocephalus Assemblage Zone of the South African Karoo, and was about 20 centimetres (8 in) in length.
Robertia possessed a moderately wide skull roof, small postcanine teeth, and the palatine bone in the roof of its mouth was not as reduced as in its more successful relative, Diictodon. It had a notch immediately in front of the tusk-like canines on the upper jaw, which would presumably have held tough plant matter, such as stems and twigs, before the animal severed them with its horny beak.
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