Paul D Stewart / Lithograph of the Moody Footmark Quarry in South Hadley, where Pliny Moody discovered the very first fossil tracks in 1802. From Hitchcock, Edward. Ichnology of New England. A Report on the Sandstone...

Paul D Stewart / Lithograph of a slab with multiple dinosaur trackways. From 'Ichnology of New England. A Report on the Sandstone of the Connecticut Valley, especially its Fossil Footmarks'. Boston: William White, 185...

Robin Chittenden / Fossil Iguanodon dinosaurs foot cast on beach, Isle of Wight, Hampshire UK August 2015

Kevin Schafer / Dinosaur (Lambeosaurus sp) fossil, Royal Tyrrell Museum, Drumheller, Alberta, Canada

Juergen Freund / Dinosaur cutout signs in outback, Queensland, Australia, July 2011

NEIL NIGHTINGALE / Portrait of Sir David Attenborough sitting next to dinosaur tracks whilst filming for 'Lost Worlds Vanished Lives', Utah, USA, 1989

Juan Carlos Munoz / Fossil of footprint of three toed prehistoric reptile, Iguanodon, Spain

Merryn Thomas / 385 million year old tetrapod trackways on Valentia Island, Ring of Kerry, Ireland, May 2009.

Daniel Heuclin / Theropod dinosaur tracks preserved in Lower Jurassic (200 million years old) rock. Near Tuba City, Arizona, USA

David Woodfall / Dinosaur footprint in Triassic rocks. UK, October 2010

Merryn Thomas / 385 million year old tetrapod trackways on Valentia Island, Ring of Kerry, Republic of Ireland, May 2009.

Steven David Miller / Fossil Dinosaur footprints, Lark Quarry Dinosaur Trackways, via Winton, Queensland, Australia The building at the Lark Quarry Dinosaur Trackways protects more than 3,000 fossilised footprints that we...