†family Spheroolithidae Zhao 1979 (bird foot dinosaur)

Reptilia - Neornithischia - Spheroolithidae

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. Mikhailov 2000

See also Mikhailov et al. 1994 and Zhao 1994

Sister taxa: Arstanosaurus akkurganensis, Bactrosaurus, Batyrosaurus, Cedrorestes, Claosaurus, Datonglong, Eolambia, Equijubus, Fukuisaurus, Gilmoreosaurus, Gobihadros, Gongpoquansaurus, Hadrosauridae, Huehuecanauhtlus, Iguanodon hillii, Jeyawati, Jintasaurus, Koshisaurus, Levnesovia, Nanningosaurus, Nanyangosaurus, Ovaloolithidae, Penelopognathus, Plesiohadros, Probactrosaurus, Protohadros, Saurolophidae, Shuangmiaosaurus, Sirindhorna, Tanius, Telmatosaurus, Tethyshadros, Trachodon cantabrigiensis, Xuwulong, Yunganglong, Zhanghenglong, Zuoyunlong

Subtaxa: Guegoolithus Spheroolithus

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Type: Spheroolithus

Ecology: ground dwelling herbivore

Distribution:

• Cretaceous of Argentina (1 collection), Canada (5: Alberta), China (21), India (1), Japan (1), Kazakhstan (1), Mexico (1), Mongolia (13), the Russian Federation (1), Spain (4), United States (8: Montana, Utah)

Total: 57 collections including 65 occurrences

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