Reptilia - Ornithischia - Ovaloolithidae
Full reference: K. E. Mikhailov. 1991. Classification of fossil eggshells of amniotic vertebrates. Acta Palaeontologica Polonica 36(2):193-238
Parent taxon: Hadrosauroidea according to K. E. Mikhailov 2000
See also Mikhailov 1991, Mikhailov 1997 and Mikhailov et al. 1994
Sister taxa: Bactrosaurus, Batyrosaurus, Cedrorestes, Claosaurus, Datonglong, Eolambia, Equijubus, Fukuisaurus, Fylax, Gilmoreosaurus, Gobihadros, Gongpoquansaurus, Gonkoken, Hadrosauridae, Huehuecanauhtlus, Iguanodon hillii, Jeyawati, Jintasaurus, Koshisaurus, Levnesovia, Morelladon, Nanningosaurus, Nanyangosaurus, Penelopognathus, Plesiohadros, Portellsaurus, Probactrosaurus, Protohadros, Qianjiangsaurus, Ratchasimasaurus, Shuangmiaosaurus, Sirindhorna, Spheroolithidae, Tanius, Telmatosaurus, Tethyshadros, Trachodon cantabrigiensis, Xuwulong, Yunganglong, Zhanghenglong, Zuoyunlong
Subtaxa: Ovaloolithus
Ecology: ground dwelling herbivore
Distribution:
• Cretaceous of China (14 collections), Mongolia (7), South Korea (2), United States (5: Utah)
Total: 28 collections including 30 occurrences