Bailey said his department was notified by Oregon County Sheriff Tim Ward July 28 that he had received a call from someone that skeletal remains were found along the banks of the Warm Fork River in the Thayer city limits.
Officers from the police department and Missouri Department of Conservation officers, Paul Veatch and Gary Cravens, uncovered a skull and a spinal cord.
Bailey said the remains would be sent to a pathologist.
"This is probably an old body that was buried a long time ago," Bailey said.
He said he did not suspect any crime had been committed. "As of right now nothing indicates any foul play is involved at all. This is the remains of an old body. The river has changed so much over the years, we're not even sure it was buried close to the river," Bailey said.
He said the incident is still under investigation.