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The Tielugou section, Shennongjia Anticline, Hubei Province (China) includes a relatively complete succession of Hirnantian (latest Ordovician) to basal Telychian (Llandovery, early Silurian) graptolite faunas. The section shows the first record of a fauna of the late Aeronian  Stimulograptus halli  Biozone from South China, even though the index species was not reported. The  Stimulograptus sedgwickii  Biozone may not be represented, indicating a possible gap at the base of the  Stimulograptus halli  Biozone. The interval yields a number of taxa that are elsewhere reported to originate only in the  Stimulograptus halli  Biozone. The youngest graptolitic levels are included in the  Spirograptus guerichi  Biozone based on specimens of  Parapetalolithus dignus  and  Parapetalolithus palmeus  not known from earlier intervals.  Spirograptus guerichi  is not represented in the section. The Tielugou section provides the first detailed information on the faunas and thickness of the encountered biostratigraphic units for the Shennongija region.

paläontologische zeitschrift

Upper Ordovician (Hirnantian) to Lower Silurian (Telychian, Llandovery) graptolite biostratigraphy of the Tielugou section, Shennongjia anticline, Hubei Province, China