sentences:  In 2006, Brian Andres and Ji Qiang named a second species of "Istiodactylus", "I. sinensis", from the Jiufotang Formation of China (from Greek "sino", pertaining to China), based on a partial skeleton.They found it very similar to "I. latidens", though much smaller, with a wingspan of , and more teeth.In 2006, Lü Junchang and colleagues concluded that "I. sinensis" was a junior synonym of the istiodactylid "Nurhachius ignaciobritoi" from the same formation.