oligocene / ˈɒl ɪ goʊˌsin /

低新世寡头时代寡居时代寡头世

oligocene2 个定义

adj. 形容词 adjective
  1. noting or pertaining to an epoch of the Tertiary Period, occurring from 40 to 25 million years ago.
n. 名词 noun
  1. the Oligocene Epoch or Series.

更多oligocene例句

  1. Heteromyids are known from the Chadron formation, of early Oligocene age, in which a single tooth was found.
  2. The Oligocene division has been generally accepted as a distinct period, but “Paleocene” is not so widely used.
  3. A new species of the rodent Pipestoneomys from the Oligocene of Nebraska.
  4. A soricid and two erinaceids from the White River Oligocene.
  5. Its fauna is incompletely known; probably it is of Miocene or Oligocene origin.