Ellinor Michel is an evolutionary biologist, ecologist and taxonomist at the Natural History Museum, London. Her work extends to palaeoclimates and scientific nomenclature. It was her interest in the history and philosophy of science that led her to co-found and chair the Friends of Crystal Palace Dinosaurs. The Dinosaurs have been a gateway to the wondrous ideas of Deep Time and to teaching us how scientific ideas come to life since 1854, she hopes this book will continue to bring those important messages to many generations of curious minds.

Mark P Witton is a leading palaeontological artist, author and researcher at the University of Portsmouth, UK. He has produced artwork for museums and universities worldwide, including Natural History Museum and The London, and American Museum's of Natural History. He has also acted as a consultant for documentaries and films, including the Walking with Dinosaurs franchise, the BBC, National Geographic and research institutes around the world. His palaeoartworks have also been featured in numerous research papers, news reports, books, television shows, museums and art galleries, and he has consulted on the appearance of fossil animals for numerous television shows and films. He has written numerous books on palaeontology and palaeoart, including three books for Crowood.