Carbon-13 and Oxygen-18 in Dinosaur, Crocodile, and Bird Eggshells Indicate Environmental Conditions
- 12 June 1970
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 168 (3937) , 1353-1356
- https://doi.org/10.1126/science.168.3937.1353
Abstract
We have gathered, from the nests of dinosaurs, and living and fossil birds, some evidence of the environment in which these creatures lived. However, our isotope determinations suggest it will be impossible to resolve the problem as to whether the dinosaurs were warm-or cold-blooded from the oxygen and carbon isotopes content of their shells.Keywords
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- Stable isotopes in precipitationTellus A: Dynamic Meteorology and Oceanography, 2012
- Distribution of Oxygen and Carbon Isotopes in Fossils of Late Cretaceous Age, Western Interior Region of North AmericaGSA Bulletin, 1969
- CARBON ISOTOPE FRACTIONATION IN FORMATION OF AMINO ACIDS BY PHOTOSYNTHETIC ORGANISMSProceedings of the National Academy of Sciences, 1961