�THE SECRET OF THE STONE-AGE SUPERMAN!� Superman travels over a million years into the past to uncover the secret of a caveman skeleton in a Superman costume!
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John Byrne, Dan Jurgens, Jerry Siegel, Otto Binder, Marv Wolfman, Joe Kelly, David S. Goyer, Joe Shuster, Al Plastino, Gil Kane, Lee Bermejo, Doug Mahnke, Wayne Boring, Curt Swan & Alex Ross
Jerry Ordway, David S. Goyer, Geoff Johns, Jeff Smith, Elliot S! Maggin, Otto Binder, Paul Kupperberg, Roy Thomas, Duncan Rouleau, Barry Kitson, Peter Krause, Don Newton & Curt Swan
Jerry Siegel, Cary Bates, Roger Stern, Grant Morrison, Jeph Loeb, Joe Kelly, Otto Binder, Bob Kanigher, Barbara Randall Kesel, William Woolfolk, Phil Jimenez, Ed McGuinness, Joe Shuster, Curt Swan, Kurt Schaffenberger, John Byrne, Frank Quitely & Al Plastino