(Bernard Price Institute for Palaeontological Research, 1997) Gow, Chris E.
This description of a partial postcranial skeleton of a mature individual of Milleretta rubidgei
shows that it has very broad (laterally expanded) ribs, and growth of limb bones had ceased.
Previously the only described postcranial skeleton was that of a young individual in which the ribs
are not as broad and the ends of the limb bones were still formed of cartilage.