Nature. 2004 Jun 10;429(6992):621.

Palaeontology: pterosaur embryo from the Early Cretaceous.

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Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, PO Box 643, Beijing 100044, China. xlinwang@263.net

Abstract

Dinosaur embryos have been discovered all over the world, but so far no pterosaur embryos have been reported. Here we describe a Chinese fossil from the Early Cretaceous period containing an embryo that is unambiguously a pterosaur. The embryonic skeleton, which is exquisitely preserved in its egg, is associated with eggshell fragments, wing membranes and skin imprints. This discovery confirms that pterosaurs were egg-layers and sheds new light on our understanding of pterosaur development.

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Palaeontology: pterosaur embryo from the Early Cretaceous.
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Nature. 2004 Jun 10 ;429(6992):621.

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Palaeontology: pterosaur embryo from the Early Cretaceous.

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