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Spheroolithus
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| Spheroolithus Temporal range: Late Cretaceous
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| Spheroolithus eggs from China | |
Egg fossil classification 
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| Basic shell type: | †Dinosauroid-spherulitic |
| Oofamily: | †Spheroolithidae |
| Oogenus: | †Spheroolithus Zhao, 1979 |
| Synonyms | |
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Spheroolithus is an oogenus of dinosaur egg.[1]
Oospecies
[edit]The following species are described:[2]
- Paraspheroolithus sanwangbacunensis
- Paraspheroolithus yangchengensis
- Spheroolithus albertensis
- Spheroolithus choteauensis
- Spheroolithus europaeus
- Spheroolithus irenensis
- Spheroolithus jincunensis
- Spheroolithus maiasauroides
- Spheroolithus megadermus
- Spheroolithus spheroides
- Spheroolithus tenuicorticus
Distribution
[edit]Fossils of the oogenus were found in:[2]
- Dinosaur Park and Oldman Formations, Alberta, Canada
- China
- Ohyamashimo Formation, Japan
- Cerro del Pueblo Formation (Difunta Group), Mexico
- Nemegt & Bayan Shireh Formations, Mongolia
- La Posa Formation (Tremp Group), Spain
- Two Medicine Formation, Montana and North Horn Formation, Utah, United States
- Lameta Formation, India
Gallery
[edit]-
Spheroolithus sp. eggs -
Paraspheroolithus eggs in Henan Geological Museum
See also
[edit]References
[edit]- ^ Wang Q, Wang X L, Zhao Z K, and Jiang Y G. (2012). "A new oofamily of dinosaur egg from the Upper Cretaceous of Tiantai Basin, Zhejiang Province, and its mechanism of eggshell formation" Chinese Science Bulletin. 57: 3740-3747. doi: 10.1007/s11434-012-5353-2
- ^ a b Spheroolithus in the Paleobiology Database
Bibliography
[edit]- Carpenter, K. 1999. Eggs, Nests, and Baby Dinosaurs: A Look at Dinosaur Reproduction (Life of the Past). Indiana University Press, Bloomington, Indiana
- 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
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