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- Title
Palaeobiology: Argentinian unhatched pterosaur fossil.
- Authors
Chiappe, Luis M; Codorniú, Laura; Grellet-Tinner, Gerald; Rivarola, David
- Abstract
Our knowledge of the eggs and embryos of pterosaurs, the Mesozoic flying reptiles, is sparse. Until now, the recent discovery of an ornithocheirid embryo from 121-million-year-old rocks in China constituted the only reliable evidence of an unhatched pterosaur. Here we describe an embryonic fossil of a different pterosaur from the Early Cretaceous lacustrine deposits of Loma del Pterodaustro (the Lagarcito Formation, which is about 100 million years old) in central Argentina. This new fossil provides insight into the eggshell morphology, early growth and nesting environments of pterosaurs.
- Publication
Nature, 2004, Vol 432, Issue 7017, p571
- ISSN
1476-4687
- Publication type
Journal Article
- DOI
10.1038/432571a