Arguably the oldest human remains in Australia, the Lake Mungo 3 skull was given the age of 60,000 years by Gregory Adcock and his researchers. However, this claim has been criticised, largely due to the process used to analyse the skull and the claims regarding the dating and the mtDNA found. Most people suggest that the age of the specimen is approximately 40,000 years. Sensitivities to handling Aboriginal remains means that specimens are not available for further research, so reassessment of the date awaits the development of appropriate ethical protocols.