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The graptolite faunas of the late Katian (Upper Ordovician) Paraorthograptus pacificus Biozone and the Hirnantian (Upper Ordovician) Metabolograptus persculptus Biozone to the Silurian (Llandovery) Lituigraptus convolutus Biozone are recognized in the Dingjiapo section of Hubei Province, China. The Rhuddanian to mid-Aeronian succession appears to be at least highly condensed. Thus, the Coronograptus cyphus to the Pribylograptu...