†Shuangmiaosaurus You et al. 2003 (bird foot dinosaur)
Full reference: H. You, Q. Ji, J. Li and Y. Li. 2003. A new hadrosauroid dinosaur from the mid-Cretaceous of Liaoning, China. Acta Geologica Sinica 77(2):148-154
Parent taxon: Hadrosauroidea according to A. A. Ramírez-Velasco et al. 2012
Sister taxa: Bactrosaurus, Batyrosaurus, Bolong, Cedrorestes, Claosaurus, Eolambia, Equijubus, Fukuisaurus, Gilmoreosaurus, Glishades, Hadrosauridae, Huehuecanauhtlus, Jeyawati, Jintasaurus, Jinzhousaurus, Levnesovia, Mantellisaurus, Nanyangosaurus, Penelopognathus, Probactrosaurus, Protohadros, Saurolophidae, Spheroolithidae, Tanius, Telmatosaurus, Tethyshadros, Xuwulong
Subtaxa: Shuangmiaosaurus gilmorei
Ecology: ground dwelling herbivore