A new dipnoan genus from the Middle Devonian of Huize, Yunnan, China

A new genus and species of tooth-plated lungfishes, <i>Dianodipterus huizeensis</i> gen. et sp. nov., is described from the Qujing Formation (late Eifelian, Middle Devonian) of Huize County, Qujing, north-eastern Yunnan, China. It differs from other lungfishes in the small proportion of the tooth-bearing part on the pterygoid (less than one-quarter), the extensively developed anteromedial edentulous portion of the pterygoid, and tooth rows few in number (only four). Phylogenetic analysis reveals that <i>Dianodipterus</i> is more plesiomorphic than <i>Dipterus</i>, yet crownward of <i>Melanognathus</i>. As the ninth Devonian lungfish genus from China, the new taxon displays a novel schema of lungfish dentition and increases the diversity of early lungfishes. http://zoobank.org/urn:lsid:zoobank.org:pub:207B0E6E-EBBF-4E92-83F4-78FDAD6EBB60