†Obdurodon Woodburne and Tedford 1975 (platypus)
Mammalia - Monotremata - Ornithorhynchidae
Full reference: M. O. Woodburne and R. H. Tedford. 1975. The first Tertiary monotreme from Australia. American Museum of Novitates 2588:1-11
Parent taxon: Ornithorhynchidae according to T. Rowe et al. 2008
Sister taxa: Monotrematum, Ornithorhynchus, Steropodon, Teinolophos
Subtaxa: Obdurodon dicksoni, Obdurodon insignis
Ecology: scansorial insectivore-herbivore