Ebook: The ammonoid family Arctohungaritidae from the Boreal Lower-Middle Anisian (Triassic) of Arctic Asia

Rev. Paleobiol., Geneve. 2001. V.
20. №
2. P. 543-641.
The family Arctohungaritidae, dominating ammonoid assemblages in the Uppermost Lower Anisian and Middle Anisian of Eastern Boreal regions, is revised. A new classification, based on phylogenetic lines, is proposed. Ten genera with twenty four species are described. Following 5 new genera and 9 new species are new to science: Tuaroceras gen. nov., Timites gen. nov., T. variabilis sp. nov., Kendelena gen. nov., K. bajarunasi sp. nov., Boreiohungarites gen. nov., B. minutus sp. nov., B. tenuis sp. nov., Orientohungarites gen. nov., O. terminalis sp. nov., Cx.ekanowsk.ites popovi sp. nov., Stannakhites lenaensis sp. nov., Arctohungarites cherskyi sp. nov., A. sakhaensis sp. nov. A new detailed biostratigraphical scheme of the Uppermost Lower- and Middle Anisian of Arctic Asia, based on the evolution of the family Arctohungaritidae, is proposed.