在Tyrannosaurus rex骨折肋骨中的血管结构的现场分析

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Jerit L Mitchell¹, Mauricio Barbi², Ryan C McKellar^3,4

¹Department of Physics, University of Regina, Regina, Saskatchewan, S4S 0A2, Canada. jlm696@uregina.ca.

Scientific reports

|July 4, 2025

概括

研究人员分析了Tyrannosaurus rex肋骨,揭示了大型血管的矿物化成型. 这些结构表明了恐龙血管网络和潜在的骨愈合的证据,为恐龙生理学提供了新的见解.

科学领域:

古生物学的古生物学
地质化学地质化学
生物矿物化生物矿物化

背景情况:

化石中的软组织保存越来越多地使用先进的成像技术进行研究.
恐龙的血管保存是罕见的,通常出现在哈弗斯运河遗留物中.
之前的研究还没有将大型恐龙血管的3D形态学和化学分析结合起来.

研究的目的:

在Tyrannosaurus rex肋骨中发现的大容器状结构的特征.
用先进的分析方法研究这些结构的形态和组成.
确定这些保存的血管网络的潜在起源和影响.

主要方法:

同步微型计算机断层扫描 (SMCT) 用于现场可视化.
同步射线X射线光 (SXRF) 和X射线吸收近边缘结构 (XANES) 用于化学微探测.
传统的光学和电子显微镜用于详细的结构分析.

主要成果:

在Tyrannosaurus rex肋骨 (RSKM P2523.8) 中发现了一个大型船形结构的网络.
这些结构是永久矿物质的件,由铁矿石组成,部分氧化为戈伊或血.
形态和位置表明血管性起源,可能与骨愈合有关.

结论:

这项研究介绍了大型血管性恐龙血管的第一个3D综合形态和化学分析.
虽然原始软组织没有被恢复,但保存的结构提供了关于恐龙血管化的见解.
对恐龙骨愈合的进一步研究可能为软组织保护研究提供新的途径.

关键词:

血管新生的产生.血管血管血管血管恐龙是一种恐龙.铁铁铁是什么意思铁铁铁病理学病理学病理学软组织软组织同步机同步机同步机.

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