Cardiovascular evidence for an intermediate or higher metabolic rate in an ornithischian dinosaur

被引：38

作者：

Fisher, PE

Russell, DA

Stoskopf, MK

Barrick, RE

Hammer, M

Kuzmitz, AA

机构：

[1] N Carolina State Univ, Biomed Imaging Facil, Raleigh, NC 27606 USA

[2] N Carolina State Univ, N Carolina State Museum Nat Sci, Raleigh, NC 27696 USA

[3] N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27696 USA

[4] N Carolina State Univ, Coll Vet Med, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27696 USA

[5] N Carolina State Univ, Environm Med Consortium, Raleigh, NC 27696 USA

[6] N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27696 USA

[7] Hammer & Hammer Paleotek, Jacksonville, OR 97530 USA

来源：

SCIENCE | 2000年 / 288卷 / 5465期

关键词：

D O I：

10.1126/science.288.5465.503

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页码：503 / 505

页数：3

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