Lower Viséan (Lower Carboniferous) rugose corals from the Donets Basin (Ukraine)

Rugose corals are described from the lower Viséan of Donets Basin. The new coral Dorlodotidae fam. nov. and species Cyathoclisia sukhensis sp. here introduced presence genera Amygdalophyllum Ceriodotia established for first time in priority generic name Protolonsdaleia over Eolithostrotionella is discussed. rugose assemblage Basin differs those upper Tournaisian Viséan. Global regional events may have led to abrupt changes sedimentation conditions at end beginning late colonial Siphonodendron, Dorlodotia, appear early as many other regions Eurasia. similarity with that Western Paleotethys noted but same time, there significant differences Eastern Paleotethys. This due a possible paleogeographic barrier located eastern part Laurussia hindering migration corals.Keywords: Mississippian, Viséan, corals, paleobiogeography, Ukraine.