
n.疑源類
The acritarch assemblage available can be used fur biostratigraphic correlation of the Qingbaikou System in the vast Yanshan region, North China. 以上疑源類的穩(wěn)定性和可比性,可作為具有廣泛生物地層對比依據(jù)。
A moderately abundant and diverse acritarch assemblage was recovered from the Miaopo Formation at 4 sections in Yichang area, Hubei, South China. 湖北宜昌地區(qū)廟坡組是達(dá)瑞威爾階/桑比階界線附近的地層,該段地層產(chǎn)出分異度較高,豐度適中的疑源類組合。
Yin Leiming and Yin Chongyu , 1997. Neoproterozoic Acritarch Biostratigraphy of China. In: Proceedings of The 30th International Geological Congress. Vol.11, pp. 67-73. 尹崇玉等,1997:華北地臺南緣豫西魯山洛峪口群洛峪口組宏觀后生植物的新發(fā)現(xiàn)。地質(zhì)論評,43卷(4):355
A well-preserved and diverse acritarch assemblage was recovered from four Upper Ordovician formations of the Dawangou section, Xinjiang, northwestern China (Tarim Block). 新疆塔里木盆地西北緣大灣溝剖面晚奧陶世地層發(fā)現(xiàn)保存良好的疑源類組合。
Not only most metazoan phyla made their debut at the earliest Cambrian, but also the fossil record like calcareous metaphyte flora and acritarch change dramatically nearly at the same time. 地球外部圈層的演替變化,諸如大陸重組、地磁極移、古氣候、大洋地球化學(xué)性質(zhì)的變化以及大氣氧含量的變化等在時間上與這一生命爆發(fā)事件有耦合關(guān)系。
疑源類