The Earth was formed approximately 4.6 billion years ago, and life appeared on the Earth about 3.8 billion years ago. Over the long history of our planet, it underwent many great changes, including continental drifts and changes in sea level, and the system of the Earth has developed.
Life has evolved in close connection with the Earth’s history, and over this time a vast array of species have thrived as well as become extinct. Then the age of humans arrived.
This exhibit begins from the formation of the Osaka Plain, and then traces back in time, the history of the islands of Japan, and the Earth, as well as the history of life itself.

11. History of Osaka Plain in the last 20,000 years

• 11A. Fossil whales under the city
• 11B. History of Osaka Plain in the last 20,000 years

• 13A. The age of man (The Nojiri-ko Palaeolithic Culture ; Palaeolithic tools of Kinki district)
• 13B. The glacial age (Vegetation during the last glacial maximum)
• 13C. The interglacial age and the ancient sea of Uemachi (Terrace)

• 15A. Tertiary flora (Plant fossils from the Japanese Tertiary sediments)
• 15B. Aspects of the Miocene Inland Sea (Mollusks of the Miocene Inland Sea)
• 15C Nijo-san (Miocene volcano at the east of Osaka)
• 15D. The age of mammals (The evolution of horse ; Desmostylus ; Eostegodon, etc.)
• 15E. Green-tuff movement in Early Miocene age (Distribution of the volcanoes in Japan)
• 15F. Japanese coal formed in the nummulitic period

• 17A. Aspects of the Mesozoic sea (Ammonites, their phylogeny, physiques, mode of life ; Mesozoic sea animals)
• 17B. Mesozoic land plants
• 17C. Dinosaurs and allied animals

• 18A. Inhabitants of the Palaeozoic forest (Palaeozoic plants and amphibians)
• 18B. Mammal-like reptiles
• 18C. Inhabitants of the Palaeozoic sea (The oldest fossil from Japan ; Precambrian fossils, Trilobites, etc.)

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