'Earth holes, gorges and streams became mass graves.
'Every year in the former Stalingrad on average three to four mass graves are found. The finding on this scale is quite special.'
The spokesman said that ID tags have also been recovered and are now being cleaned before the identification process begins.
He added: 'Usually the relatives are relieved to know what happened and pleased the body of their grandpa or uncle will be buried. It is very important.'
According to a historian and expert on the Battle of Stalingrad, the mass grave is consistent with accounts of the victorious Soviet Red Army hurriedly burying the German dead in a gorge towards the end of the conflict.
Michael Jones, author of Stalingrad: How the Red Army Triumphed, said: 'The Battle of Stalingrad was a catastrophic defeat for the German 6th Army.
'A month after its surrender, at the beginning of March 1943, Soviet Lieutenant Vladimir Gelfand visited the city.
'He wrote in his diary of seeing a terrible picture of destruction with dead bodies everywhere. He said that some had been placed in heaps for burial and others lay on the ground, partially stripped of clothing.
'The recent discovery of a mass German grave at Angarsky in present-day Volgograd, containing more than 1,800 soldiers corroborates Gelfand's account.
'For in March 1943 a gorge near the Angarsky settlement was hurriedly used by the Soviets - fearful of an outbreak of disease as spring approached - as a makeshift burial pit for the remains of thousands of German troops and their horses.
'Such was the fate of an army which Hitler had proudly proclaimed could conquer the very gates of Heaven itself.'
Mr Jones believes there will still be Russian war veterans alive today who would begrudge the German dead a proper burial.
He said: 'The remains will probably be moved to the nearby war cemetery at Rossoschka, which contains both German and Russian dead, although some Red Army veterans are still resolutely opposed to any form of commemoration for their fallen opponents.
'Hero of the Soviet Union Mikhail Borisov said bluntly 'the Germans seized vast tracts of our country and killed or enslaved millions of our people. There should not be any memorials to them on our land.'