emerged as one of their staunchest supporters. He has proposed some new lines of evidence, including the figure's resemblance to the dinosaurs depicted in Robert Bakker’s book, Dinosaur Heresies. In 1970, Erle Stanley Gardner published his last travel book, Host With the Big Hat with a chapter on the collection. His biographer Dorothy B. Hughes wrote that "the story of Acámbaro may be the crowning achievement of his archeological investigations". Dating Attempts have been made to date the figures using thermoluminescence (TL) dating. The earliest results, from tests done when TL dating was in its infancy, suggested a date around 2500 BC. However, later tests contradicted these findings. In 1976, Gary W. Carriveau and Mark C. Han attempted to date twenty Acámbaro figures using TL dating. They found that the figures had been fired at temperatures between 450 °C and 650 °C (850 to 1200°F), which contradicted claims that these figures had been fired at temperatures too low for them to be accurately dated. However, all of the samples failed the "plateau test", which indicated that dates obtained for the Acámbaro figures using standard high-temperature TL dating techniques were unreliable and lacked any chronological significance. Based on the degree of signal regeneration found in remeasured samples, they estimated that the figures tested had been fired approximately 30 years prior to 1969. See also Ica stones Out-of-place artifact References External links Acámbaro figures and the Julsrud Museum at Municipality of Acámbaro official page. Creationism Guanajuato Pseudoarchaeology 1944 in Mexico Archaeological forgeries it:Acámbaro#Statuette