A well-preserved dinosaur footprint discovered by 4-year-old Lily Wilder at Bendricks Bay, near Barry in January 2021, will go on display at National Museum Cardiff.

The exhibition, titled Lily's Fossil Footprint, will be on display in National Museum Cardiff's main hall from 21 July. The exhibition is generously supported by players of the People's Postcode Lottery.

Amgueddfa Cymru – National Museum of Wales Palaeontology curator Cindy Howells was notified of the find and has described it as the best specimen ever found on this beach.

The specimen is a type of footprint called Evazoum, which was made around 220 million years ago by a currently unknown herbivorous dinosaur. It is often impossible for scientists to identify the species of the dinosaur, or other reptile, that made such fossil footprints.

Scientists will now be able to examine the specimen to establish more about the biodiversity and anatomy of dinosaurs and other reptiles in the Late Triassic of south Wales and how they used to walk.

Fossils are a very special part of Wales' heritage, but they can easily be damaged if people try to collect them. Although many families enjoy fossil-hunting, the museum stresses that this needs to be carried out responsibly. Members of the public should only take home a limited number of small, loose fossils from beaches where it is legally permitted to do so.

Special permission had to be sought from Natural Resources Wales (NRW) to legally remove Lily's fossil specimen. Bendricks beach is under private ownership and is legally protected as a Site of Special Scientific Interest (SSSI). The collection of any rocks, minerals and fossils from this site is not permitted, and can result in large fines.

The landowner, British Institute for Geological Conservation is a charity that works to conserve natural heritage through site ownership, education and community engagement.

Cindy Howells, Palaeontology Curator, Amgueddfa Cymru – National Museum Wales, said: "This fossilised dinosaur footprint from 220 million years ago is one of the best-preserved examples of its type from anywhere in the UK and will really aid palaeontologists to get a better idea about these early dinosaurs and how they walked."

Dr Kath Davies, Director of Collections and Research, Amgueddfa Cymru – National Museum Wales, said: "The display of this special footprint is the result of us working in partnership with the British Institute for Geological Conservation, Archaeology Cymru and Natural Resources Wales to safely remove the fossil from Bendricks Bay to National Museum Cardiff.

"We look forward to seeing visitors of all ages enjoy this exciting discovery and be inspired by Lily's story. Our dinosaur fossils and the dinosaurs in the Evolution of Wales gallery always prove popular with visitors and I hope people take this opportunity to find out more about dinosaurs and how life evolved in Wales."

Sally Wilder, Lily's mother, said: "We were thrilled to find out it really was a dinosaur footprint, and I am happy that it will be taken to the National Museum where we can be enjoyed and studied for generations.