File:Eggshell associated with Beibeilong sinensis (HGM 41HIII1219).jpg

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Summary

Description
English: (a) Photograph showing the ornamentation on the outer surface of Macroelongatoolithus eggshell. Scale bar, 2 cm. (b) Photomicrograph showing histological section of Macroelongatoolithus eggshell in radial view shows two microstructural layers (lower mammillary layer and upper continuous layer) demarcated by an undulatory boundary (arrow). Scale bar is 1 mm.
Date
Source https://www.nature.com/articles/ncomms14952
Author Hanyong Pu, Darla K. Zelenitsky, Junchang Lü, Philip J. Currie, Kenneth Carpenter, Li Xu, Eva B. Koppelhus, Songhai Jia, Le Xiao, Huali Chuang, Tianran Li, Martin Kundrát & Caizhi Shen.

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9 May 2017

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current07:51, 29 January 2021946 × 1,177 (254 KB)PaleoNeolitic

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