The sample of diatomaceous earth upon which the observationshave been made,was send to me some time ago by Drs.C.C.Young andP.Teilhard de Chardin of the Geological Survey of China.This is the
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B. V. SKVORTZOV.1937. Neogene Diatoms from Eastern Shautung[J]. Acta Geologica Sinica(),17(2):
