Archaeologists have unearthed mysterious animal bones and 1,500-year-old underfloor heating at a Roman villa.

The finds were discovered by Kent Archaeological Society (KAS) at an ancient bathhouse in Otford, near Sevenoaks.

Normally animal remains are badly damaged and “come in bits” which suggests they had been eaten.

But these remains, dated from 350-400 AD, points to the animal being buried intact.

Richard Taylor, deputy general manager of KAS, said his team believe the bones were buried for ritualistic purpose.

He said: “The animal is possibly a small horse due to the size of the remains.

"We see lots of animal remains on sites but we do not often see bones in such good condition.

“We cannot be sure but the condition of the bones suggest it was ritualistic as they were buried with a purpose.

“What that purpose is we do not yet.”

The remains have now be sent to experts who will be able to determine health and diet of the animal.

Excavations carried out at the villa by the Discover Roman Otford Project (DROP) also found an under-floor heating system.

DROP began the dig back in 2015 and has continued to uncover new findings such as samian pottery – used for fine tableware in Roman Britain – and terracotta.

The villa is thought to be a community building and its position off the River Darent implies it was a high-status Roman house.

The archeologists believe the area was inhabited by Romano-British who were native tribes who adopted Roman culture and identity.

DROP has been receiving training from KAS in skills needed to record and file the findings.

Six volunteer archaeologists have been training 50 people who have undergone the upskilling course which passes on drawing, photography and analytic skills.

The hope is that with these skills DROP will be able to act more independently.