Full reference: Z. Zhao. 1979. [Advances in the study of fossil dinosaur eggs in our country]. Mesozoic and Cenozoic red beds of South China; selected papers from the field conference on the South China Cretaceous-Early Tertiary red beds. Science Press, Beijing 330-340
Parent taxon: Hadrosauroidea according to K. E. Mikhaillov 2000
Sister taxa: Bactrosaurus, Batyrosaurus, Bolong, Cedrorestes, Claosaurus, Eolambia, Equijubus, Fukuisaurus, Gilmoreosaurus, Glishades, Hadrosauridae, Huehuecanauhtlus, Jeyawati, Jintasaurus, Jinzhousaurus, Levnesovia, Mantellisaurus, Nanyangosaurus, Penelopognathus, Probactrosaurus, Protohadros, Saurolophidae, Shuangmiaosaurus, Tanius, Telmatosaurus, Tethyshadros, Xuwulong
Subtaxa: Boletuoolithus, Paraspheroolithus, Placoolithus, Shixingoolithus, Spheroolithus
Type: Spheroolithus
Ecology: ground dwelling herbivore