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Mesozoic Era in China - The Age of Dinosaurs

The geographic time scale of earth is defined by time intervals. The largest unit of time is the supereon which is further divided into shorter interval intervals

Eon: Half a billion years or more and has more than 1 Era.

Era: Several hundred million years and has more than 1 period.

Period: has more than 1 epoch.

Epoch: Tens of million of years and has more than 1 age.

Age: Million of years


Precambrian period is the earliest period in earth's history.

The next Eon is the Phanerozoic which is divided into Paleozoic, Mesozoic and Cenozoic Era.

Mesozoic Era has 3 periods Triassic, Jurassic and Cretaceous. It lasted 160 million years from Triassic period 230 million years ago thru the Jurassic period 200 million years ago and ended in the Cretaceous period 65.5 million years ago. China is one of the countries rich in dinosaurs fossil finds.

The next Era, Cenozoic Era, is also the start of the prehistoric China and Stone Age.

Period:

Triassic Period

Timeline:
252 - 209 million years ago

Yuan Shan National Forest Park Stone Sea, Zibo City, Shandong Province

This was a seabed 250 million years ago.

Jurassic Period

Timeline:
200 - 150 million years ago

Zigong Dinosaur Museum, Zigong City, Sichuan Province

The museum was built over the 25,000sqm site where dinosaur fossils from 160,000,000 years ago were found.

Cretaceous Period

Timeline:
150 - 66 million years ago

Mashan Stone Forest, Qingdao City, Shandong Province

The rocks were formed by volcanic eruptions 100 million years ago.

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