Moscovian (Carboniferous) orthoconic cephalopods from Guizhou and Guangxi, South China.

概要

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Nine species of orthoconic cephalopods have been described from Moscovian (Carboniferous) limestone of the Guizhou and Guangxi region, South China. The fauna is composed of four orthocerids : Bogoslovskya guizhouensis sp. nov., Mericoceras guangxiense sp. nov., Mericoceras sp., and Mimogeisonoceras? sp. and five bactritids : Bactrites faqingensis sp. nov., Bactrites cf. nagatoensis Niko, Nishida and Kyuma, Bactrites sp., Ctenobactrites? sp., and Sinobactrites wuae gen. et sp. nov. The new parabactritid genus Sinobactrites is diagnosed by its relatively small angle of shell expansion, oval cross section, and abruptly recurved septal necks. It is noteworthy that the assemblage includes species closely related to some of the Akiyoshi fauna.
日本古生物学会の論文