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Organic-welled microfossil have been
studied in china as long as nearly half century. More than hundreds publications
concerning with acritarchs from Archena to Cenozoic strata recorded the
evolutive history of microphytoplankton, as the fundamental chain of oceanic
nutrition. To study acritarchs in more detail ad in-depth is not only
necessary of biostratigraphy, especially for Precambrian and Paleozoic,
but also provides significant information for searching origin and evolution
of life in early geological time of Earth and for reconstruction of old-age
marine ecological system.
Sedimentary rocks of nearly whole geological time from Archean to Cenozoic
outcrop wide-spread in China. Abundant and well-preserved microplanktonic
fossils have been found from rocks of different geological ages. Of which
the terminal Precambrian Doushantuo microbiota of South China is much
famous in the world ad many Proterozoic and early Paleozoic acritarch
assemblages have became the attentive focuses or common cited data in
international.
In the early days, acritarch study in China was mainly on Precambrian
biosratigraphy and they are taken as the important fossil evidences from
shale where are normally absence of stromatolites. The representative
acritarchs and acritarch assemblages of different geological ages in China
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