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Incoming Resources
- The story of the Earth in 25 rocks, tales of important geological puzzles and the people who solved them, Donald R. Prothero
- The Princeton field guide to prehistoric mammals, Donald R. Prothero ; with illustrations by Mary Persis Williams
- Giants of the Lost world, dinosaurs and other extinct monsters of South America, Donald R. Prothero
- UFOs, chemtrails, and aliens, what science says, Donald R. Prothero and Timothy D. Callahan ; foreword by Michael Shermer
- When humans nearly vanished, the catastrophic explosion of the Toba volcano, Donald R. Prothero
- The story of the dinosaurs in 25 discoveries, amazing fossils and the people who found them, Donald R. Prothero
- The story of the Earth in 25 rocks, tales of important geological puzzles and the people who solved them, Donald R. Prothero
- The Princeton field guide to prehistoric mammals, Donald R. Prothero ; with illustrations by Mary Persis Williams
- When humans nearly vanished, the catastrophic explosion of the Toba volcano, Donald R. Prothero
- UFOs, chemtrails, and aliens, what science says, Donald R. Prothero and Timothy D. Callahan ; foreword by Michael Shermer
- The story of the dinosaurs in 25 discoveries, amazing fossils and the people who found them, Donald R. Prothero