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Cardiovascular evidence for an intermediate or higher metabolic rate in an ornithischian dinosaur.
- Source :
-
Science (New York, N.Y.) [Science] 2000 Apr 21; Vol. 288 (5465), pp. 503-5. - Publication Year :
- 2000
-
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.
- Subjects :
- Animals
Aorta anatomy & histology
Basal Metabolism
Birds anatomy & histology
Birds metabolism
Body Weight
Heart diagnostic imaging
Image Processing, Computer-Assisted
Iron Compounds analysis
Minerals
Paleontology
Tomography Scanners, X-Ray Computed
Tomography, X-Ray Computed
X-Ray Diffraction
Fossils
Heart anatomy & histology
Reptiles anatomy & histology
Reptiles metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 0036-8075
- Volume :
- 288
- Issue :
- 5465
- Database :
- MEDLINE
- Journal :
- Science (New York, N.Y.)
- Publication Type :
- Academic Journal
- Accession number :
- 10775107
- Full Text :
- https://doi.org/10.1126/science.288.5465.503