Eocene
adjective uk/ˈiː.əʊ.siːn/ us/ˈiː.oʊ.siːn/
始新世的
from or referring to the period of time between about 56.5 and 35.4 million years ago
Fossils show that until the end of the Eocene period a land bridge connected Eurasia with North America. 化石显示,直到始新世末期,欧亚大陆和北美洲之间仍有一座陆桥相连。
rocks of Eocene age 始新世时期的岩石
- More examples
- He proposed a new plan of classification for the Eocene mammals.
- Fossil Lake is an ancient lake bed left over from the Eocene epoch.
- Conflicting interpretations derived from different types of data leave considerable uncertainty about early Eocene temperatures.
- Eocene whales, for example, were very similar to modern whales.
Eocene
noun [ S ] uk/ˈiː.əʊ.siːn/ us/ˈiː.oʊ.siːn/
the Eocene 始新世(距今约5650至3540万年之间)
a period of time between about 56.5 and 35.4 million years ago. It is between the Palaeocene and the Oligocene epochs (= periods of time)
During the age known as the Eocene, the earth experienced a great expansion of mammalian species. 在被称为始新世的时代,地球经历了哺乳动物物种的大规模扩张。
Fossils of sub-tropical species such as crocodiles and turtles have been found in the Canadian high Arctic dating from the early Eocene, 55 million years ago. 在加拿大北极高纬度地区发现了亚热带物种的化石,如鳄鱼和海龟,可追溯到5500万年前的始新世早期。
See also: PalaeoceneOligocene