''Ovaloolithus'' is an oogenus of dinosaur egg. Eggs of the genus have been found in

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

, Mongolia and Utah.

Species

Oospecies attributed to this genus include:''Ovaloolithus''
in the Paleobiology Database * ''O. chinkangkouensis'' -

Cenomanian The Cenomanian is, in the ICS' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the s ...

Santonian The Santonian is an age in the geologic timescale or a chronostratigraphic stage. It is a subdivision of the Late Cretaceous Epoch or Upper Cretaceous Series. It spans the time between 86.3 ± 0.7 mya (million years ago) and 83.6 ± 0.7 mya. The ...

Bayan Shireh Formation, Mongolia, Campanian Jingangkou Formation ( Wangshi Group), China * ''O. dinornithoides'' - Maastrichtian Nemegt Formation, Mongolia * ''O. laminadermus'' - Campanian Jingangkou Formation ( Wangshi Group), China * ''O. tenuisus'' - Maastrichtian (

Lancian The Lancian was a North American faunal stage of the Late Cretaceous. It was the final stage of the Cretaceous period in North America, lasting from approximately 70.6 to 66 million years ago. Geology Terrestrial sedimentary strata from the Judit ...

)

North Horn Formation The North Horn Formation is a widespread non-marine sedimentary unit with extensive outcrops exposed in central and eastern Utah. The formation locally exceeds in thickness and is characterized by fluvial, lacustrine, and floodplain dominated s ...

, Utah * ''O. turpanensis'' - Campanian- Maastrichtian Subashi Formation, China * ''O. utahensis'' - Maastrichtian (

)

, Utah * ''Ovaloolithus sp.'' -

Coniacian The Coniacian is an age or stage in the geologic timescale. It is a subdivision of the Late Cretaceous Epoch or Upper Cretaceous Series and spans the time between 89.8 ± 1 Ma and 86.3 ± 0.7 Ma (million years ago). The Coniacian is preceded by t ...

Zhaoying Formation The Zhaoying Formation is a Coniacian geologic formation in Henan Province, China.Cenomanian The Cenomanian is, in the ICS' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the s ...

- Turonian Chichengshan Formation (

Tiantai Group Tiantai or T'ien-t'ai () is an East Asian Buddhist school of Mahāyāna Buddhism that developed in 6th-century China. The school emphasizes the ''Lotus Sutra's'' doctrine of the "One Vehicle" ('' Ekayāna'') as well as Mādhyamaka philosoph ...

) and Turonian Majiacun Formation, China * ''O. huangtulingensis'' * ''O. mixistriatus'' * ''O. monostriatus'' * ''O. sangpingensis'' * ''O. tristriatus'' * ''O. weiqiaoensis''

References

* J.-L. Zhang, Q. Wang, S.-X. Jiang, X. Cheng, N. Li, R. Qiu, X.-J. Zhang and Z.-L. Wang. 2017. Review of historical and current research on the Late Cretaceous dinosaurs and dinosaur eggs from Laiyang, Shandong. Vertebrata PalAsiatica 55(2):187-200 * Z. Zhao, S. Zhang, Q. Wang and X. Wang. 2013. Dinosaur diversity during the transition between the middle and late parts of the Late Cretaceous in eastern Shandong Province, China: Evidence from dinosaur eggshells. Chinese Science Bulletin 58(36):4663-4669 * X.-l. Wang, Q. Wang, S.-x. Jiang, X. Cheng, J.-l. Zhang, Z.-k. Zhao, and Y.-g. Jiang. 2012. Dinosaur egg faunas of the Upper Cretaceous terrestrial red beds of China and their stratigraphical significance. Journal of Stratigraphy 36(2):400-416 * S.-K. Zhang and Q. Wang. 2010. new species of ovaloolithids from Turpan Basin in Xinjiang, China Vertebrata PalAsiatica 48(1):71-75 * X. Liang, S. Wen, D. Yang, S. Zhou, and S. Wu. 2009. Dinosaur eggs and dinosaur egg-bearing deposits (Upper Cretaceous) of Henan Province, China: Occurrences, palaeoenvironments, taphonomy and preservation. Progress in Natural Science 19(11):1587-1601 * K. E. Mikhailov. 2000. Eggs and eggshells of dinosaurs and birds from the Cretaceous of Mongolia. In M. J. Benton, M. A. Shishkin, D. M. Unwin, & E N. Kurichkin (eds.), The Age of Dinosaurs in Russia and Mongolia 560-572 * Carpenter, K. 1999. Eggs, Nests, and Baby Dinosaurs: A Look at Dinosaur Reproduction (Life of the Past). Indiana University Press, Bloomington, Indiana * X. Yu. 1998. haracteristics of dinosaur fossils from southern Anhui and their significance for stratigraphic position Regional Geology of China 17(3):278-284 * Y. Li, Y. Liu, X. Chen and G. Zhao. 1996. Dinosaurian Embryo II: Young Dinosaur-bones in ''Ovaloolithus''. Earth Science - Journal of China University of Geosciences 21(6):608-610 * Z. Zhao. 1979. dvances 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 * 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 * C.-C. Young. 1965. ossil eggs from Nanshiung, Kwangtung and Kanchou, Kiangsi Vertebrata PalAsiatica 9(2):141-170 * C.-C. Young. 1954. Fossil reptilian eggs from Laiyang, Shantung, China. Scientia Sinica 3(4):505-522 Dinosaur reproduction Cretaceous China Fossils of China Cretaceous Mongolia Fossils of Mongolia Cretaceous geology of Utah Paleontology in Utah Fossil parataxa described in 1979 {{eggshell-stub

Species

See also

References

Further reading