ostracods 中文意思是什麼
ostracods
解釋
浮遊介形類-
The volcanic rock age and the age of the qiangtang formation determined the wudaoliang group between 20 - 5ma, discovering a flood of spore and pollen with ostracods fossils ( regard eucypris as principle ), which are miocene epoches typical numerator, therefore wudaoliang group accumulate in miocene epoch is doubtless ; 9 - 2ma are the age of the suonahu formation based on the data of the esr, which were characteristic of later period in miocene epoch - pliocene epoch, spore and pollen with fossil all were miocene epoch period
由火山巖和覆于其上的羌塘組的年齡限定五道梁群的沉積時間為20 - 5ma ，五道梁群中發現大量的孢粉和介形蟲化石（以eucypris為主） ，分析認為它們都是中新世時期的典型分子，因此五道梁群的沉積時間為中新世是無疑的；嗩吶湖組的esr測年數據范圍為9 - 2ma ，代表中新世晚期?上新世時期，孢粉和化石都具有中新世時期的特徵。
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