Scott Resources Comprehensive Advanced Fossil Collection including 30 fossils contains demonstration specimens of animal phyla and plants from the Paleozoic Mesozoic and Cenozoic periods This collection is well suited to the needs of earth science and biology curricula and includes a descriptive key sheet and a geologic time chart Features . Scott Resources Advanced Fossil Collection. Set of 30 Specifications . Country of Origin United States. Safety Choking Hazard Small Parts Not for children under 3 yrs . Allergens Contains No Allergens