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・ Shiwan
・ Shiwan Ware
・ Shiwanzhen Subdistrict
・ Shiwe language
・ Shiwe Nongwanya
・ Shiwei
・ Shiwiar language
・ Shiwu
・ Shiwuliyuan
・ Shixi Station
・ Shixia Station
・ Shixing (disambiguation)
・ Shixing County
・ Shixing language
・ Shixinggia
Shixingoolithus
・ ShixxNOTE
・ Shiyakusho Station
・ Shiyakusho-mae Station
・ Shiyakusho-mae Station (Chiba)
・ Shiyakusho-mae Station (Hiroshima)
・ Shiyakusho-mae Station (Wakayama)
・ Shiyakushomae Station (Fukui)
・ Shiyan
・ Shiyan Rural District
・ Shiyan Wudangshan Airport
・ Shiyang River
・ Shiyangtang, You County
・ Shiyani Ngcobo
・ Shiyazhuang Railway Station


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Shixingoolithus : ウィキペディア英語版
Shixingoolithus

''Shixingoolithus'' is an oogenus of dinosaur egg from the Cretaceous of Nanxiong, China.〔Z. Zhao, J. Ye, H. Li, Z. Zhao, and Z. Yan. 1991. Extinction of the dinosaurs across the Cretaceous-Tertiary boundary in Nanxiong Basin, Guangdong Province. Vertebrata PalAsiatica 29(1):1-20〕〔Carpenter, K. 1999. Eggs, Nests, and Baby Dinosaurs: A Look at Dinosaur Reproduction (Life of the Past). Indiana University Press, Bloomington, Indiana.〕
==Description==
''Shixingoolithus'' eggs are nearly spherical, and about 12 cm in diameter, with a shell thickness of 2.3-2.6 mm. The shell is made up of tall, prismatic units, and has narrow, irregular pore canals. Its cone layer (mammillae) is approximately a fourth of the shell thickness.〔〔Zhao, Z.K. (1994). "Dinosaur eggs in China: On the structure and evolution of eggshells." In K. Carpenter, K. F. Hirsch, and J. R. Horner (eds.), Dinosaur Eggs and Babies, Cambridge University Press, Cambridge. In K. Carpenter, K. F. Hirsch, and J. R. Horner (eds.), Dinosaur Eggs and Babies, Cambridge University Press, Cambridge 184-203 〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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