New Early Carboniferous and Bashkirian Ammonoids from the eastern slope of the South Urals

In the Early Carboniferous-Bashkirian the most diverse ammonoid assemblages were associated with deep-water settings of the outer shelf and the carbonate platform slope. At the end of the Early Bashkirian, ammonoid assemblages of basins of the eastern slope of the South Urals were associated with shallow-water settings and bioherm buildups, which probably contributed to their endemism. New species of the genera Neogoniatites, Schartymites, and Stenoglaphyrites are described from localities of the eastern slope of the South Urals.