Late Devonian conodonts (excluding the genera Icriodus, Polygnathus and Palmatolepis) from the Tabas region (E Iran) and Middle-Late Devonian conodonts from the Alborz Mountains (N Iran) are studied. Thirty-one taxa of Bipennatus, Ancyrodella, Ancyrognathus, Pelekysgnathus, Palmatolepis (only from the Khoshyeilagh Formation) are illustrated and three new species, Bispathodus tabasensis, Protognathodus ruttneri and Pr. eftekhari are described.
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