On their Space-Time Shuttle tour of the prehistoric world, a brother and sister land in the Jurassic Period where they see the largest and most ferocious land animals that have ever lived.
John Gerald Head Book order (chronological)
World of the Reptiles
- 30 pages
- 2 hours of reading
Aboard their Space-Time Shuttle, a brother and sister stop in the Permian Period to see prehistoric reptiles.
A brother and sister travel back in time to several epochs in the Cenozoic Era and observe a variety of prehistoric mammals in their natural environment.
A brother and sister travel back in time to the late Devonian period where they observe the first amphibians