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January 2017
Vol 40-3
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Print ISSN: 0031-0247
Online ISSN: 2274-0333
Frequency: biannual

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Eggshell microstructure and porosity of the Nicobar scrubfowl (Megapodius Nicobariensis, great Nicobar island, India)
Géraldine Garcia, Ashu Khosla, Ashok Sahni and Monique Vianey-Liaud
Keywords: conductance porosity; eggshell microstructure; incubation conditions; Megapodes

doi: 10.18563/pv.36.1-4.75-88
 
  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. 


  Article infos

Published in Vol. 36, Fasc. 1-4 (2008)

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Un nouveau type de coquille d'oeuf présumé Dinosaurien dans la Campanien et le Maestrichtien continental de Provence.
Philippe Kerourio
Keywords: Campanian/Maastrichtian; eggshell microstructure; Provence
 
  Abstract

    The discovery of eggshells of ornithoid type is signaled for the first time in the continental Campanian and Maastrichtían of Provence. The taxonomie relationship of these eggshells and their interest in the biostratigraphical study of Upper Cretaceous of Provence are discussed. 


  Article infos

Published in Vol. 12, Fasc. 4 (1982)

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