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Well-preserved cryptospore and chitinozoan assemblages were recovered from the Tierekawati Formation (late Katian, Late Ordovician) of the Mannan-1 borehole, south Tarim basin (Tarim Block), China. The chitinozoan assemblage is low in abundance and diversity (two genera, five species), and its age is restricted to the late Katian (Late Ordovician). The cryptospore assemblage consists of the tetrads...
A total of 80 samples were collected primarily for chitinozoans from the Wuxiahe Formation (late Llandovery–early Sheinwoodian) in the Ziyang–Langao region, Shaanxi Province, Northwest China. Besides chitinozoans, several other microfossil groups have been recovered unexpectedly, including conodonts, melanosclerites, acritarchs, and scolecodonts. Colonized acritarchs and club-shaped melanosclerites...
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