New Conodont Species from the Famennian (Upper Devonian) of the Urals

详细

New conodont species of the genus Polygnathus from the Upper Famennian of the Urals and Cis-Urals are described. Po. tsygankoi sp. nov. is distributed from the expansa‑praesulcata conodont zones. This species occupies an intermediate position in the phylogenetic lineage Polygnathus atasuensis–Po. tsygankoi sp. nov.–Po. lobatus sensu Kononova. Po. serriformis sp. nov. is known from the praesulcata Zone. Evolutionary relationships of Po. serriformis sp. nov. are unknown.