Dictionary of Geotourism

2020 Edition
| Editors: Anze Chen, Young Ng, Erkuang Zhang, Mingzhong Tian

Palaeogene Period

Reference work entry
DOI: https://doi.org/10.1007/978-981-13-2538-0_1817

The Palaeogene Period is the first period of the Cenozoic Era and is equivalent to the original late Tertiary Period. It lasted from 65.5 to 23.03 million years ago, a duration of 42.47 million years. The Palaeogene System, which was formerly called the Lower Tertiary System, includes the rocks that formed during the Palaeogene Period. It includes the Palaeocene Series, Eocene Series and Oligocene Series, which are further divided into nine stages. At the beginning of the Palaeogene Period, the Earth was subject to a major catastrophe induced by an asteroid collision that eventually led to the extinction of dinosaurs and marine organisms such as ammonites. Mammals and woody angiosperms flourished during the Palaeogene Period. In China, the Palaeogene System was mostly composed of terrestrial facies. Based on the rapid evolution and development of mammals, the terrestrial strata can be effectively compared; as a result, the Palaeogene System in China has been subdivided into eight...

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