The below paleofiction titles are free and legally available. Feel free to contact me with links to stories not listed here.
Novels
Journey to the Center of the Earth by Jules Verne (1864)
The Lost World by Sir Arthur Conan Doyle (1912)
Edgar Rice Burroughs:
- The Land That Time Forgot (Caspak trilogy, Book One; 1918)
- The People That Time Forgot (Caspak trilogy, Book Two; 1918)
- Out of Time’s Abyss (Caspak trilogy, Book Three; 1918)
- At the Earth’s Core (Pellucidar, Book One; 1914)
- Pellucidar (Pellucidar, Book Two; 1915)
Stories
The Way of a Dinosaur by Harley S. Adlinger (Amazing Stories, April 1928)
The Death of the Moon by Alexander Phillips (Amazing Stories, February 1929)
A Million Years After by Katharine Metcalf Roof (Weird Tales, November 1930)
The Tomb of Time by Richard Tooker (Amazing Stories, March 1933)
When Reptiles Ruled by Duane N. Carroll (Wonder Stories, January 1934)
One Prehistoric Night by Philip Barshofsky (Wonder Stories, November 1934)
The Reign of the Reptiles by A. Connell (Wonder Stories, August 1935)
Blitzkrieg in the Past by John York Cabot (Amazing Stories, July 1942)
The Lost Warship by Robert Moore Williams (Amazing Stories, January 1943)
Before the Dawn by John Taine (Famous Fantastic Mysteries, February 1946)
A Gun for Dinosaur by L. Sprague de Camp (Galaxy Science Fiction, March 1956)
When Time Was New by Robert F. Young (Worlds of IF, December 1964)
Robert J. Sawyer:
- Just Like Old Times (1993)
- Gator (1997)
- Forever (1997)
Audio plays
A Gun for Dinosaur by L. Sprague de Camp (X Minus One, March 1956)
Project Mastodon by Clifford D. Simak (X Minus One, June 1956)
Prehistoric Pulp 