概括
化石骨中的氧同位素组成揭示了人体温度. 泰龙龙王可能保持着稳定的体温,这表明了内热特性.
科学领域:
- 古生物学的古生物学
- 生物地质化学生物地质化学
- 古热度测量是一种古热度测量.
背景情况:
- 脊椎动物骨酸盐 (delta(p)) 的氧同位素成分反映了骨形成过程中摄入的水和体温.
- 骨酸氧同位素与体水处于平衡状态,体水在整个身体中生理上是稳定的.
研究的目的:
- 在保存良好的化石脊椎动物中确定骨内温度变化和骨间温度差异.
- 为了评估Tyrannosaurus rex的体温调节和代谢率.
主要方法:
- 在化石脊椎动物骨酸盐中分析氧气同位素组成 (delta(p)).
- 使用delta (p) 变化推断骨内部和骨之间的温度波动.
主要成果:
- 来自Tyrannosaurus rex化石的氧同位素数据表明,身体温度的变化小于4摄氏度.
- 这种稳定的体温表明Tyrannosaurus rex.的同热性.
结论:
- 铁龙公的恒温意味着相对较高的新陈代谢率,相当于现代的内热体.
- 对骨酸盐的氧同位素分析是一种可行的方法,用于重建已灭绝的脊椎动物的温度调节.
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