The 110-million-year-old fossils were first discovered by Philip Hadland, collections curator at the nearby Hastings Museum and Art Gallery. They are believed to come from at least six different species and have been verified by independent experts.
Mr Hadland said: “Back in 2011, I came across unusual impressions in the rock formation at Folkestone.
“They seemed to be repeating and all I could think was they might be footprints.
“This was at odds with what most geologists say about the rocks here, but I went looking for more footprints and as the tides revealed more by erosion, I found even better ones.
“More work was needed to convince the scientific community of their validity, so I teamed up with experts at the University of Portsmouth to verify what I’d found.”
The Folkestone Museum is now displaying some of the footprints.
Professor David Martill, who teaches palaeobiology at Portsmouth University, explained the finding’s importance.
He commented: “This is the first time dinosaur footprints have been found in strata known as the ‘Folkestone Formation’ and it’s quite an extraordinary discovery because these dinosaurs would have been the last to roam in this country before becoming extinct.
“They were walking around close to where the white cliffs of Dover are now – next time you’re on a ferry and you see those magnificent cliffs just imagine that.
RED MORE: ‘Jurassic giant’ dinosaur footprint on Yorkshire beach stuns woman
Several different types of dinosaur footprint were found in the collection.
These included meat eating theropods, which have three claws on each foot for dispatching prey.
There were also ankylosaurs, protected by a hardened shell, and ornithopods so-called because of their bird like feet.
The iguanodon was one of the larger ornithopods.
Mr Hadland said the finds transform our understanding of the area’s geology.
He explained: “Aside from finding that dinosaurs went to the seaside just like their modern relatives the birds, we have also found new evidence that changes the interpretation of the geology of the Folkestone Formation strata.
“It just goes to show that what has been previously published about the geology of an area isn’t always correct and new insights can be made.
“There is also the potential for almost anyone to make a discovery that adds to scientific knowledge from publicly accessible geological sites.”
Dinosaurs became extinct 66 million years ago in the Cretaceous-Paleogene extinction event.
However birds, close relatives that evolved from dinosaurs, continue to thrive to this day.