Assistant professor Kate Spradley says the skull, apparently of a Native American man, could be from hundreds to thousands of years old. Spradley said Wednesday that the skull is likely prehistoric because of certain features, including three molars that are worn down, possibly due to a gritty diet.
The Texas drought has led to lower lake levels.
The Austin American-Statesman reports some people who were fishing discovered the skull Monday near Russell Park. Spradley says the skull is well preserved and she thinks it was embedded in the bank of the lake.
TSU experts were contacted as police sought to rule out foul play.