而在大约3千4百万年前的渐新世的欧亚大陆上达到顶峰，在大约1千万年前中新世的欧亚大陆和非洲大陆又再次达到顶峰。

It peaked in the Oligocene Epoch around 34 million years ago in Eurasia, and again in the Miocene Epoch about 10 million years ago in Eurasia and Africa.

youdao

伊朗晚中新世的几个地点新近发现了哺乳动物足迹化石。

Miocene mammalian footprints have been recently identified from several Late Miocene localities in Iran.

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研究注意到在2个结壳中都没有发现可信的晚渐新世到中新世的化石记录，在个别层位之间存在着沉积间断。

This study notes that no reliable Late Oligocene to Miocene nannofossil markers were found in these 2 crusts. Furthermore, sedimentation hiatus was observed.

youdao

Phase One, the million and a half years ago, in the early--in the late--Miocene and early Pleistocene phases, there was shift where people were less likely to be just going out and gathering foods from every place they could find it.

第一阶段,一百五十万年前,在整个中新世以及更新世的早期,情况开始转变,人们不光靠,出门四处搜集食物

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选