JURASSIC in A TIN: This set proves that a lot of fun can fit in a little space-this 7 piece (6 dinosaurs and 1 off-road vehicle) dinosaur set fits neatly inside its small tin! Perfect for dinosaur lovers and children with imagination. Recommended for ages six (6) and up. The Jurassic period was a geologic period that lasted 56 million years between the Triassic and Cretaceous periods. The Jurassic period was in the middle of the Mesozoic Era, also known as the Age of Reptiles. It was during this era that saw the rise and dominance of dinosaurs. The name "Jurassic" comes from the Jura Mountains. The Jurassic period was recognized and identified by Abraham Gottlob Werner in 1799. Recreate the thrill and excitement of the period with Jurassic in a Tin!