Revision of the Ordovician conodont species Fahraeusodus adentatusand the new genus Pohlerodus

AbstractFahraeusodus adentatus, the type species of Fahraeusodus, is revised based on the re-examination of the original types and a large collection of topotype specimens from the Emanuel Formation (Lower Ordovician) of the Canning Basin in Western Australia. Confirmation of a modified pastinate Pa element in the septimembrate ramiform-pectiniform apparatus of this conodont species has resulted in a redefined generic definition for Fahraeusodus. Based on this newly defined diagnosis of Fahraeusodusand its type species, all other species previously assigned to Fahraeusodusand Texaniaare reviewed and now placed in Pohlerodusgen. nov., which is erected herein to substitute Texania, which is a junior homonym.Yong Yi Zhen [yong-yi.zhen@regional.nsw.gov.au], Geological Survey of New South Wales, W.B. Clarke Geoscience Centre, 947–953 Londonderry Road, Londonderry NSW 2753, Australia.