A second, smaller skull, with the specimen number BP/1/4009, was later described by Kitching in 1977; it came from the same general layer of rock, in the "Cistecephalus" assemblage zone of the Karoo Supergroup.
A second, smaller skull, with the specimen number BP/1/4009, was later found in 1966 and described by Kitching in 1977. Both came from the same general layer of rock, in the "Cistecephalus" assemblage zone of the Karoo Supergroup.