For the second day in a row, Clay County investigators searched an Orange Park pond where human remains were found.
Investigators confirmed they recovered a skull with teeth and are hopeful dental records will help them identify the person more quickly.
A boy who was fishing discovered the remains Monday evening.
"It's pretty detailed," Clay County Sheriff's Office Sgt. Marty Cotchaleovitch said of the investigation. "This is somebody's family member, and you want to make sure for a couple reasons: for evidentiary value that we find everything that's here, and secondary, I mean, it's somebody's loved one. You want to make sure you have everything."
The Medical Examiner's Office was on scene Wednesday helping crime scene technicians sort the bones.
Investigators said the skeleton is of an adult, but they're not sure if the remains are of a man or woman. They said it's too early to speculate the cause of death or how long the remains had been there.
"One of the things we're more happy about is the skull appears to have most of the teeth, so we may be able to through dental workers, try to go back on the reports and be able to identify it that way," Cotchaleovitch said.
Looking into local missing persons dental records will be one of the next steps. If the remains don't match up, investigators will have to build a DNA profile and solicit help from forensic anthropologists, a process that could take a while.
There are three active missing person cases in Clay County, and investigators are working with law enforcement officers in other nearby counties. With a discovery like this, detectives are sent to talk to family members of missing people as a precaution.
"Just trying to keep people's minds at ease, and you know, when we know, they'll know first and foremost, but it's just a process, and you don't want to get ahead of yourself as far as speculating it could be this or that. You may miss something," Cotchaleovitch said.
Investigators said there is a homeless camp they keep an eye on regularly in the wooded area where the remains were found, but they're not ruling out any possibilities.