Cardiovascular Evidence for an Intermediate or Higher Metabolic Rate in an Ornithischian Dinosaur
- 21 April 2000
- journal article
- editorial
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 288 (5465) , 503-505
- https://doi.org/10.1126/science.288.5465.503
Abstract
Computerized tomography scans of a ferruginous concretion within the chest region of an ornithischian dinosaur reveal structures that are suggestive of a four-chambered heart and a single systemic aorta. The apparently derived condition of the cardiovascular system in turn suggests the existence of intermediate-to-high metabolic rates among dinosaurs.Keywords
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