Abstract: In 1930，P. Teilhard de Chardin and C. C. Young found abundant Mammalian fossils in reddish clay, when they observed and studied Jingle area in Shanxi Province. They described the red accumulation as layer A, B and C of the reddish clay and also advanced a new term—-Jingle laterite. In 1934, based on the same data, Young posed that Jingle laterite and layer A of the reddish clay are of the same age, and named it as Jingle Period aging middle part of Pliocene epoch. Recently, detailed magnetostrtigraphic measurement has been made at Hefeng Section, in Jingle, Shanxi Province, where Teilhard de Chardin and Young divided the reddish clay into layer A—-in which Hefeng fauna was discovered layer B and layer C. This study was continued to be in honor of C. C. Young. And we will report the results in the article.

摘要： 对P. Teilhard de Chardin(德日进)和杨钟健发现贺丰动物群的山西静乐贺丰剖面作了磁性地层学测量。结果表明:静乐贺丰地点的静乐红土记录了Gauss正极性带，年龄为2.50-3.00Ma B. P.，时代为晚上新世。因此，贺丰动物群的古地磁年龄当为2.50-3.00 Ma。