Egg shape changes at the theropod–bird transition, and a morphometric study of amniote eggs

@inproceedings{Deeming2014EggSC,
  title={Egg shape changes at the theropod–bird transition, and a morphometric study of amniote eggs},
  author={D Charles Deeming and Marcello Ruta},
  booktitle={Royal Society open science},
  year={2014}
}
The eggs of amniotes exhibit a remarkable variety of shapes, from spherical to elongate and from symmetrical to asymmetrical. We examine eggshell geometry in a diverse sample of fossil and living amniotes using geometric morphometrics and linear measurements. Our goal is to quantify patterns of morphospace occupation and shape variation in the eggs of recent through to Mesozoic birds (neornithe plus non-neornithe avialans), as well as in eggs attributed to non-avialan theropods. In most… CONTINUE READING
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