Cyprinus-like pharyngeal bones and teeth (Teleostei, Cypriniformes, Cyprinidae) from the Early–Middle Oligocene deposits of South China

分类： 地球科学 >> 地质学 提交时间： 2017-08-08 合作期刊: 《古脊椎动物学报》

CHEN Geng-Jiao CEN Li-Di LIU Juan

摘要： Here we describe †Nanningocyprinus wui gen. et sp. nov, a fossil Cyprinus-like fsh from the Early-Middle Oligocene deposits of Langdong, Nanning Basin, Guangxi Province,South China. †Nanningocyprinus wui is represented by a number of pharyngeal bones and teeth.It differs from all other cyprinid fishes in the following character combination: tooth formula—3·2·1, crushing molar-like A1 much larger than A2, only one groove on the grinding surface of A2 and B1 respectively, and the anterior angle of the pharyngeal bone triangular and prominent.The new-found Cyprinus-like fsh, along with the previously known Late Eocene †Eoprocypris maomingensis (Procypris-like) and Oligocene †Huashancyprinus robustispinus (Cyprinus-like)from South China, further indicates an early branching and diversification of the Cyprininae(Cyprinidae) in this area

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