Police had been called to the scene after a dog walker saw his animal had uncovered a human bone.
Arms, legs and a head were then found nearby and identified as belonging to Ms Mayhew by her DNA.
The Old Bailey heard that the victim’s torso is still being sought after by the police.
Police are searching for a dismembered torso after a woman was allegedly murdered, cut up with power tools and dumped in a park.
Remains belonging to Sarah Mayhew, 38, were found in Rowdown Fields in New Addington, south London last Tuesday.
Following their arrest on Saturday, Gemma Watts, 48, and Steven Sansom, 44, were accused of killing her and obstructing her rightful burial.
It is alleged that the couple killed Ms Mayhew at a residential property before her body was dismembered with power tools.
The cause of the victim’s death remains unascertained.
However, an examination of her body found two small vertebrae were broken in her voicebox, bruising to the skull and her head had been shaved.
Ms Mayhew was last seen in Sutton, south-west London, on the evening of March 8.
On Thursday, Sansom and Watts appeared separately at the Old Bailey before Judge Philip Katz KC.
It is alleged that the couple killed Ms Mayhew at a residential property before her body was dismembered with power tools.
The cause of the victim’s death remains unascertained.
However, an examination of her body found two small vertebrae were broken in her voicebox, bruising to the skull and her head had been shaved.
Ms Mayhew was last seen in Sutton, south-west London, on the evening of March 8.
On Thursday, Sansom and Watts appeared separately at the Old Bailey before Judge Philip Katz KC.
Watts, of Featherbed Lane in New Addington, appeared first by video link from Bronzefield prison followed later by Sansom from Belmarsh jail.
Both defendants merely said their names to verify one other, and Watts seemed to have a heavy bruise over her eye.
She and Sansom are accused of killing Ms. Mayhew at the residential property on March 8 and then getting rid of the body, according to testimony given to the court.
“This is quite a significant ongoing investigation in relation to the whereabouts of the deceased’s entire body,” said prosecutor Tom Little KC.
“There is no doubt that power tools were used to cut the deceased’s body into pieces.”
Judge Katz scheduled a provisional trial beginning on February 17 of the following year, and a plea hearing on June 27.
The defendants were remanded into custody by the Old Bailey judge.
Sansom, of Burnell Road, Sutton, in southwest London, is additionally accused of fabricating three different counts of pornographic pictures of children.
