Experts discovered a row of ancient footprint is the French village of Plagne, near Lyon in 2009.
The footprints were an astonishing three foot wide and left five impressive toe marks.
Now, researchers from the Laboratoire de Geologie de Lyon have been able to identify the beast which had nine foot long strides.
It is a new species discovery which they have called Brontopodus plagenensis which translates to English as ‘Thunderfoot from Plagne’.
By studying the footprints, the researchers believe Thunderfoot weighed a staggering 35 tonnes and was at least 35 metres long and would have waled at a speed of 2.4 miles per hour.
The craters found in Plagne dated back 150 million years to the Jurassic period, according to the research published in the journal Geobios.
The tracks were discovered by nature lovers Marie-Helene Marcaud and Patrice Landry while on a walk in the region who reported it to the relevant authorities.
A spokesman for the Centre National de la Recherche Scientifique said: “Dating of the limestone layers reveals that the trackway was formed 150 million years ago, during the Early Tithonian Age of the Jurassic Period.
“At that time, the Plagne site lay on a vast carbonate platform bathed in a warm, shallow sea.
“The presence of large dinosaurs indicates the region must have been studded with many islands that offered enough vegetation to sustain the animals.
“Land bridges emerged when the sea level lowered, connecting the islands and allowing the giant vertebrates to migrate from dry land in the Rhenish Massif.”
Several other tracks still remain in Plagne, including 18 marks which cover 38 metres which experts say was left by a carnivore of the Megalosauripus.