Genus
Formal taxon Extinct

Ovaloolithus

Zhao 1979

Ovaloolithus is an oogenus of dinosaur egg. Eggs of the genus have been found in China, Mongolia and Utah.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
27
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Ovaloolithus
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Wikimedia
Ovaloolithus
Ovaloolithus
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
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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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Ovaloolithidae Family
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Ovaloolithus Genus
Fossil sites 27 geolocated sites
Distribution
Top countries
🇨🇳 China
14
🇺🇸 United States
7
🇲🇳 Mongolia
6
Geological formations
Jingangkou
8
North Horn
7
Nemegt
3
Gaogou
2
Chichengshan
1
Döshuul
1
Baynshire
1
Majiacun
1
Zhaoying
1
Djadokhta
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
10
Campanian (83.6–72.2 Ma)
11
Coniacian (89.8–85.7 Ma)
3
Turonian (93.9–89.8 Ma)
2
Cenomanian (100.5–93.9 Ma)
1
Species (12)
Ovaloolithus chinkangkouensis 101 Ma
Ovaloolithus dinornithoides 84 Ma
Ovaloolithus huangtulingensis
Ovaloolithus laminadermus 84 Ma
Ovaloolithus mixistriatus
Ovaloolithus monostriatus
Ovaloolithus sangpingensis 94 Ma
Ovaloolithus tenuisus 72 Ma
Ovaloolithus tristriatus
Ovaloolithus turpanensis 84 Ma
Ovaloolithus utahensis 72 Ma
Ovaloolithus weiqiaoensis
Images 2
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 (8)
S.-K. Zhang and Q. Wang. 2010. [A new species of ovaloolithids from Turpan Basin in Xinjiang, China]. Vertebrata PalAsiatica 48(1):71-75
X. Fang, Z. Zhang, and Q. Pang, P. Li, Y. Han, H. Xie, R. Yan, F. Pang, J. Lü, Z. Cheng. 2007. [Cretaceous strata and egg fossils in Xixia, Henan province]. Acta Geoscientia Sinica 28(2):123–142
X. Fang, Y. Wang, and Y. Jiang. 2000. [On the Late Cretaceous fossil eggs of Tiantai, Zhejiang]. Geological Review 46(1):105-112
E. S. Bray. 1999. Eggs and eggshell from the Upper Cretaceous North Horn Formation, central Utah. Vertebrate Paleontology in Utah, Utah Geological Survey Miscellaneous Publication 99-1
H. Zhao and Z. Zhao. 1998. [Dinosaur eggs from Xichuan Basin, Henan province]. Vertebrata PalAsiatica 36(4):282–296
Y. Li, Y. Liu, and X. Chen, G. Zhao. 1996. Dinosaurian Embryo II: Young Dinosaur-bones in Ovaloolithus. Earth Science - Journal of China University of Geosciences 21(6):608-610
K. E. Mikhailov. 1994. Eggs of sauropod and ornithopod dinosaurs from the Cretaceous deposits of Mongolia. Paleontological Journal 28(3):141–159
T.-k. Chao and T.-k. Chiang. 1974. Microscopic studies on the dinosaurian egg-shells from Laiyang, Shanting province. Scientia Sinica 17(1):73-90