The remains of the first British explorer to circumnavigate the Australian continent and popularise the country's name have been found near a busy London railway station.

Archaeologists sifting through a vast burial ground near Euston station said they had found a coffin plate identifying the last resting place of Royal Navy captain Matthew Flinders.

Flinders was buried on 23 July 1814, but not before publishing 'A Voyage to Terra Australis,' which described his circumnavigation of Australia in 1802-1803 that proved it was a continent.

"Flinders put Australia on the map due to his tenacity and expertise as a navigator and explorer," said Helen Wass, an archaeologist overseeing the dig for the HS2 high speed rail project.

With an estimated 40,000 remains at the site, archaeologists were not sure they were going to find Flinders, whose resting place had been subject to much speculation. 

"We were very lucky" said Ms Wass, he "had a breastplate made of lead meaning it would not have corroded."

"We'll now be able to study his skeleton to see whether life at sea left its mark and what more we can learn about him."

His surname is also associated with many places in Australia, including Flinders Station in Melbourne, Flinders Ranges in South Australia and the town of Flinders in Victoria.

The headstone marking his final resting place was removed following the expansion of Euston Station westwards into part of the burial ground in the 1840s, and it was thought his remains had been lost.

For a long time there was an urban myth that Captain Flanders was buried under platform 15.

At the bicentenary of this death, a statue was unveiled by the Duke of Cambridge at Australia House and later installed at Euston Station.

It features Trim the cat, who was renowned for having sailed around the globe, as well as circumnavigating Australia during the voyages of exploration of his master, Captain Flinders.

Ms Hass said: "This discovery is particularly exciting for me as an archaeologist as Cpt Matthew Flinders was the grandfather of renowned Sir William Matthew Flinders Petrie, commonly known as the 'father of archaeology'."

The discovery of his remains comes on the eve of "Australia Day" a controversial national holiday which falls on the date of the arrival of the British First Fleet to Australia.

Many Australians view the Fleet and men like Flinders as harbingers of the decimation of ancient Aboriginal societies and cultures.

There is added controversy over the role of an aboriginal Australian aide to Flinders named Bungaree, who has been largely eclipsed by his British captain, but who historians now believe played a crucial role in success of the voyages.

Captain Flinders will be reinterred with the buried population of St James's Gardens at a location to be announced, HS2 said.

Additional Reporting PA