Издатель: ПИН РАН , Место издания: М. , Год издания: 2018

The taxonomic composition of the Late Carnian ammonoids of Northeastern Russia and Arctic Canada is analyzed. Based on the revision of the Sirenitidae of Northeast Russia, the generic assignment of the ammonoids of this group in the Upper Carnian of Arctic Canada has been refined, and the Boreal-Tethyan correlation of the Upper Carnian deposits at the zonal level has been amended. The upper part of the Yakutosirenites pentastichus Zone of Northeastern Russia, containing Arctosirenites canadensis Tozer, correlates with the Arctosirenites canadensis Beds of Arctic Canada, the lower Subzone of the Tropites welleri Zone of British Columbia and the lower part of the Tropites subbullatus Zone of the Alpine scale. The lower part of the pentastichus Zone correlates with the Tropites dilleri Zone of North America and the Alps, based on the presence of Proarcestes winnemae Smith and its stratigraphic position above the Yakutosirenites armiger Zone, equivalent to the Austrotrachyceras austriacum Zone of the Alps. The Orientosirenites yakutensis Zone of Northeastern Russia probably corresponds to the Jovites borealis Beds of Arctic Canada, the upper Subzone of the welleri Zone of British Columbia and the upper part of the subbullatus Zone of the Alps.