the tepexpan man is the name of a skeleton, which was found on the shore of the former lake texcoco in central mexico. archaeologist helmut de terra discovered it in february 1947. it is at least 10,000 years old. even though it is called the tepexan "man," the skeleton is that of a woman. the skeleton was found lying face down with the arms under the chest and the legs drawn up to the stomach. the body most likely sunk into the mud surrounding it, leaving the shoulder, back, and hips exposed, which might explain why those elements are missing. it is possible that the body was originally put in a lake.