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William G. Siesser D. Wayne Orchiston Tony Djubiantono 《Alcheringa: An Australasian Journal of Paleontology》2013,37(2):87-99
The Upper Kalibeng Formation and the marine intercalations of the lower part of the Pucangan Formation at Sangiran, Central Java, contain more than 30 taxa of fossil calcareous nannoplankton. These fossils indicate a Late Pliocene age for the Upper Kalibeng and lower Pucangan. The Upper Kalibeng Formation is assigned to calcareous nannoplankton Zone NN 16 (3.25 – 2.3 m.y.). The lower Pucangan Formation is within the NN 16 to NN 18 interval (3.25 – 1.65 m.y.). 相似文献
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