Jiaodontus is an extinct genus of lonchidiid cartilaginous fish which existed in Liuhuanggou, Xinjiang Uyghur Autonomous Region, northwestern China, during the late Jurassic (Oxfordian age).

[1] Fossils have been found in the Qigu Formation, China.

[1] It was first named by Stefanie Klug, Thomas Tütken, Oliver Wings, Hans-Ulrich Pfretzschner and Thomas Martin in 2010 and the type species is Jiaodontus montaltissimus.

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