英语释义

• from 58 million to 40 million years ago; presence of modern mammals

片语

eocene flora始新世植物群

Eocene era始新世

late eocene晚始新世

Eocene Oligocene始新统

middle eocene始新世

Eocene epoch始新世

upper eocene上始新世

英汉例句

• Gingerich believes the first cetaceans probably resembled anthracotheres, svelte hippo-like browsers that inhabited swampy lowlands in Eocene times.

  金格里奇相信第一批鲸和沼泽地碳兽十分相似，一种生活在始新世时期沼泽低地里，形似河马的小型食草动物。

• Few or any anthropoids are known to have existed in Africa during this period, known as the Eocene epoch.

  人们原先不知道在这个被称为「始新世」的时期，非洲有类人猿的存在。

• 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。

• Dating from the Eocene Epoch, the crater is likely less than 50 million years old, but the impact bored into Proterozoic sandstones well over 500 million years old.

  它形成于始新世，距今可能不到5000万年，但是撞击鉆入的原生代砂巖都已经超过5亿年。

• Any of various extinct ungulate mammals of the Eocene to Pleistocene epochs, having distinctive three-clawed, three-toed feet.

  一种已灭绝的始新世和更新世的有蹄哺乳动物，其特征为有三爪，每爪有三趾。

• So, the timing of terrestrial strata can be defined from Eocene to Oligocene in Paleogene.

  因此，尼玛盆地的陆相地层时代应为古近纪始新世-渐新世。

• Since the beginning of the upper Triassic epoch, the Indian plate upthrusted to the north over the Tethys oceanic crust and led to the closure of the Tethys in Eocene epoch.

  晚三迭世开始，印度板块在特提斯洋壳上向北仰沖，并导致特提斯在始新世的关闭。

• According to the analysis of Mesozoic and Cenozoic tectonic evolution, Bohai Bay basin is a strike slip pull apart basin formed in the Cenozoic Eocene epoch.

  从渤海湾盆地的中、新生代构造演化分析，渤海湾盆地是一个新生代早第三纪始新世形成的走滑拉分盆地。

• The final transition from basilosaurids to modern whales began 34 million years ago, during the sudden phase of cooling climate that ended the Eocene epoch.

  始新世末期温度骤降，约3400年前，过渡形式的朝龙王鲸(basilosaurid)开始向现代鲸演变。

• 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。

• New specimens of Eocene bird Kievornis Averianov et al.

  描述了始新世基辅鸟类新标本。

• The other was a feathered skull from the Eocene (55m years ago) that had been unearthed in Denmark.

  另一个是在丹麦发掘到的始新世（5500万年前）的一根羽骨。

• Though the Cretaceous asteroid cleared the stage, mammals did not really get going until 10m years later, in the Eocene epoch.

  尽管白垩纪时小行星撞击地球后为哺乳动物搭起了活动的舞台，但是哺乳动物真正大行其道是100万年以后的事情了，也就是在始新世时期。

• It intruded Eocene sandstones.

  它侵入始新世砂巖。

• The massive changes of the kinematic pattern occurred roughly between the Eocene and Oligocene epochs, which is in accordance with the great reorganization in global kinematics and dynamics.

  运动学模式发生巨大转变的时期，大致在始新世与渐新世之间，这与全球运动学和动力学发生的重大改组的时间相一致。

• The microorganisms had lain dormant since the Eocene epoch, a time when Australia split off from Antarctica and modern mammals first appeared.

  自始新世（5300-3650万年前）开始，它们便沉睡在化石之中，在那个时代，澳洲板块刚刚与南极板块分离，而现代哺乳动物刚刚开始出现。

• Whichever way you look at the Eocene enigma, it is bad news for life on Earth.

  无论用何种途径来观察始新世温室的这个谜，都对地球上生命带来不好的消息。

• There are at least three reservoir cases in deepwater: Eocene terrestrial formation, low Oligocene transitional formation and Pliocene and above Marine deepwater fans.

  深水区储层至少有三套，始新世陆相地层、下渐新统海陆过渡相地层和上新统及其以上海相深水扇。

• The placement and orientation of these fossils also tells researchers about the conditions at Green River during the Eocene .

  这些化石的形成的地点和方位同时也让研究者们知道在始新世的绿河的环境条件。

• Combining with volcanic activities, Eocene hypabyssal rocks, tonalite, intruded in Cretaceous volcanic strata.

  伴随着火山活动，始新世英云闪长巖侵入白垩系火山巖地层。