Abstract from Description of a Cranial Endocast from a Fossil Platypus, Obdurodon dicksoni (Monotremata, Ornithorhynchidae), and the Relevance of Endocranial Characters to Monotreme Monophyly, by T. E. Macrini, T. Rowe and M. Archer (Journal of Morphology 267:1000-1015):
This specimen was collected from the middle Miocene Ringtail Site on the Riversleigh World Heritage property in Queensland, Australia. It was made available to the University of Texas High-Resolution X-ray CT Facility for scanning by Dr. Michael Archer of the University of New South Wales. Funding for scanning was provided by Dr. Archer.
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