Human–dinosaur coexistence
The coexistence of avian dinosaurs (birds) and humans is well established historically and in modern times. The coexistence of non-avian dinosaurs and humans exists only as a recurring motif in speculative fiction, because in the real world non-avian dinosaurs have at no point coexisted with humans.
Illustration from the first edition of The Lost World (1912), depicting a human and an (outdated) Stegosaurus
A falconer with a Harris's hawk (an avian dinosaur)
The "dinosaur of Ta Prohm", erroneously identified by some as a depiction of a stegosaur
One of the Ica stones, featuring outdated depictions of a theropod (right; notably upright and dragging its tail on the ground) and sauropod (bottom)
Dinotopia is a series of illustrated fantasy books, created by author and illustrator James Gurney. It is set in the titular Dinotopia, an isolated island inhabited by shipwrecked humans and sapient dinosaurs who have learned to coexist peacefully as a single symbiotic society. The first book was published in 1992 and has "appeared in 18 languages in more than 30 countries and sold two million copies." Dinotopia: A Land Apart from Time and Dinotopia: The World Beneath both won Hugo awards for best original artwork.
Dinotopia: A Land Apart from Time by James Gurney
Cover of Dinotopia: The World Beneath.
Cover of Dinotopia: First Flight.
Cover of Dinotopia: Journey to Chandara.