摘要
我国北方 18— 19亿年前的串岭沟组中获得的大球形疑源类 ,迄今 ,被认为是可信的最古老真核化石记录。自上世纪 80年代以来 ,东秦岭北坡的中元古代晚期汝阳群陆续发现了丰富的球形光面疑源类 ,具刺疑源类 ,丝状微体化石和一些有疑问的动物遗迹。很显然 。
Until now, the convincingly oldest fossil record of eukaryotes is of large sphaeromorphic acitarchs from the Chuanlinggou Formation (1800-1900Ma), China. In the last two decades, abundant sphaeromorphic acritarchs, acanthomorphic acritarchs, filamentous microfossils and some doubtful animal traces have been found from late Mesoproterozoic Ruyang Group in north slope of eastern Qinling Mountains, China. It is obvious that eukaryotic organisms experinced a significant radiation during the late Mesoproterozoic.
出处
《微体古生物学报》
CSCD
北大核心
2003年第1期39-46,共8页
Acta Micropalaeontologica Sinica
基金
Supported by National Natural Science Foundation of China ( Nos.95 -Z-0 2 -0 1,49972 0 0 6) ,the Ministry of Science and Technology ofChina ( No.G2 0 0 0 0 7770 0 ) ,the Innovative Project of China Academy of Sciences ( No.KZCXZ-116)
