Eggshell microstructure and porosity of the Nicobar scrubfowl (Megapodius Nicobariensis, great Nicobar island, India)

Géraldine Garcia, Ashu Khosla, Ashok Sahni and Monique Vianey-Liaud

Cite this article: Garcia G., Khosla A., Sahni A., Vianey-Liaud M., 2008. Eggshell microstructure and porosity of the Nicobar scrubfowl (Megapodius Nicobariensis, great Nicobar island, India). Palaeovertebrata 36 (1-4): 75-88. doi: 10.18563/pv.36.1-4.75-88

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Abstract

The eggshell of Nicobar scrubfowl (Megapodius nicobariensis) is described for the first time. Its egg porosity is calculated and discussed with data from several taxa (another megapode, some extant and fossil reptiles including a titanosaur group) in order to compare incubation types with eggshell structure. Eggshell microstructure reflects first phylogenetic traits and does not seem to have developed major adaptative features due to the incubation conditions, except for the pore canals. 

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