TAXONOMY, ANATOMY AND PSYCHOLOGY, with notes on the views of the late Professor Thurgood Elson concerning the genus. In Rhedosaurus harryhausensis, Pelycosaur characters are synapomorphic-- unexplained and challenging crossover features. The Coracoid process in prehistoric reptiles. Rhedosaurs as sauropodomorph predecessors. This would be the result of convergent evolution, since we classify Rhedosaurus as a kind of Sphenodon, a Rynchocephalian. Not a dinosaur! Eventually KrOB appears and adds immeasurably to the colloquium.