Youngest occurrences were found from the Middle Miocene of North America, the Pliocene of Europe, and the Pleistocene of Asia.
最晚的化石记录分别发现于北美的中中新世、欧洲的上新世和亚洲的更新世。
One extinct hamster of Cricetus, for example, lived in North Africa during the Middle Miocene, but the only extant member of that genus is the common hamster of Eurasia.
一个灭绝仓鼠的Cricetus，例如，生活在北非，中东中新世期间，但现存的唯一成员，这是共同的属仓鼠欧亚大陆。
The Central Anticline Zone composed of fault-band folds and a few fault-propagation folds, which started to form during Miocene to the middle stage of Pliocene.
中部背斜带中发育的构造主要为断层转折褶皱和少量断层传播褶皱，开始形成于中新世上新世中期；
The third phase, during the middle and the later Miocene, with the Indochina block intruding into Eurasia plate gradually, Indochina peninsula's extrusion slowed down further.
第三阶段，中、晚中新世随着印度地块逐渐楔入欧亚板块内部，印支半岛的挤出运动进一步减弱。
The strata of Mesozoic and Cenozoic in the basin can be divided into three parts, Middle Jurassic (Longjiagou Formation ), Lower Cretaceous and Upper Miocene (Baode Formation ).
根据化石组合，龙家沟盆地的地层可划分为中侏罗统龙家沟组，上白垩统及上中新统保德组。
During the period from Late Oligocene to Middle Miocene, the basin changed from rifting to depression, and the depositional area continued to expand in the Marine environment.
晚渐新世—中中新世，盆地逐渐由断陷转为断拗，沉积范围不断扩大，整体处于海相沉积环境。
The middle Jurassic Yeba formation volcanics, Paleocene biotite granite porphyry, Miocene quartz monzonite and Oligocene granite porphyry could be found in the ore field.
矿区出露中朱罗统叶巴组火山次火山沉积岩、古新世黑云母花岗斑岩、中新世二长石英斑岩以及渐新世花岗斑岩。
The middle Jurassic Yeba formation volcanics, Paleocene biotite granite porphyry, Miocene quartz monzonite and Oligocene granite porphyry could be found in the ore field.
矿区出露中朱罗统叶巴组火山次火山沉积岩、古新世黑云母花岗斑岩、中新世二长石英斑岩以及渐新世花岗斑岩。
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