The Lost World by Arthur Conan Doyle was published as a serial in The Strand magazine from April–November 1912. Illustrated by New-Zealand-born artist Harry Rountree
Top: The first page of Chapter I.
"The journey across the tree bridge." Which reminds me of the Chinese floating mountains that inspired the terrain for James Cameron’s Avatar.
"Challenger fell, and as I stooped to pick him up I was again struck from behind and dropped on the top of him." Attacked by Pterodactylus.
Inspired by The Lost World, in 1916, Edgar Rice Burroughs published The Land That Time Forgot.
Though The Lost World concept, where prehistoric creatures and peoples had survived until the modern era was introduced by Jules Verne in Journey to the Center of the Earth, published in 1864.