Richard Lydekker

“ A skull from the Upper Triassic Karoo beds of South Africa described as Tritylodon longaevous, which has multituberculate molar teeth, was also at first placed in this group, but has been subsequently regarded as a reptile, although Dr R. Broom considers that the original determination is correct. Possibly a fore-limb from the same formation described as Theriodesmus phylarchus indicates a similar or allied animal. Not improbably Tritylodon indicates a direct link between the multituberculate mammals and the anomodont reptiles of the Permian and Trias. ”