An ancient forest of cypress trees, estimated to be eight million years old, has been discovered in Hungary. Archaeologists found the 16 preserved trunks in an open cast coal mine in the north-eastern city of Bukkabrany.

The specimens were preserved intact while most of the forest turned to coal thanks to a casing of sand, which was perhaps the result of a sandstorm.

It is hoped the trees may offer experts a valuable insight into Earth's climate eight million years ago.