Homo Sapiens Tepexpan Man
Tepexpan man was discovered by archaeologist Helin de Terra in Lake Texcoco, central Mexico. The site is near mammoth so the skeleton was thought to 10,000 years old. However, after the uranium isotope analysis has done, it showed that the skeleton is 4700 years old. Although its discoverer claimed the skeleton was male, the DNA analysis prove it was female. There is a healed fracture on his ulna. De Terra hypothesized this truama was caused by hunting activities. However Science Newsletter claims that this individuals was more likely suffered from arthrits.