Classification
Dinosauria
Unranked clade
›
Ornithischia
Unranked clade
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Neornithischia
Unranked clade
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Pyrodontia
Unranked clade
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Cerapoda
Unranked clade
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Ornithopoda
Suborder
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Iguanodontia
Infraorder
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Euiguanodontia
Unranked clade
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Dryomorpha
Unranked clade
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Ankylopollexia
Unranked clade
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Styracosterna
Unranked clade
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Hadrosauriformes
Unranked clade
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Hadrosauroidea
Unranked clade
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Spheroolithidae
Family
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Spheroolithus
Genus
Fossil sites 38 geolocated sites
Distribution
Top countries
Geological formations
Temporal distribution
Maastrichtian
(72.2–66 Ma)
8
Campanian
(83.6–72.2 Ma)
20
Coniacian
(89.8–85.7 Ma)
3
Cenomanian
(100.5–93.9 Ma)
4
Albian
(113.2–100.5 Ma)
3
Species (8)
Spheroolithus albertensis
101 Ma
Spheroolithus europaeus
101 Ma
Spheroolithus jincunensis
101 Ma
Spheroolithus quantouensis
121 Ma
Spheroolithus spheroides
121 Ma
Images 1
Bibliography
Original description
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
Bibliography (22)
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C.-C. Young. 1954. Fossil reptilian eggs from Laiyang, Shantung, China. Scientia Sinica 3(4):505-522