oligocene的翻译，读音

例句

Late oligocene and the Ulunguhe Fm. Early Eocene to Early oligocene. 乌伦古河组——早始新世至早渐新世。

Eocene through lower oligocene lacustrine shales and oligocene through lower Miocene lacustrine and deltaic coaly shales are the mature source rocks. 始新世到渐新世湖泊页岩、渐新世到中新世到湖泊和三角洲页岩都是成熟的矿源岩。

However, there are not only a lot of sporopollen assemblages from Eocene to oligocene but also much more ichthyolite from oligocene to Miocene. 然而，这套地层中存在大量始新世-渐新世的孢粉组合，同时赋存有相当数量的时代为渐新世-中新世的鱼化石。

Beibu Wan Basin was a lake in the middle Eocence-Lower oligocene. 北部湾盆地在中始新世至早渐新世是一个湖泊。

Both the sciurids and aplodontids found from oligocene of Asia have closer relationships with those of North America than with Europe. 蒙古渐新世啮齿类化石的新发现表明，亚洲渐新世的松鼠和山河狸与北美的关系要比与欧洲的近。