Pawlicki R, Nowogrodzka-Zagórska M
Department of Histology, Jagiellonian University, Collegium Medicum, Kraków, Poland.
Ann Anat. 1998 Feb;180(1):73-7. doi: 10.1016/s0940-9602(98)80140-4.
Dinosaur bones, 80 million years old, were studied in the scanning electron microscope, and subjected to X-ray microanalysis. Samples for the investigations were prepared according to specially elaborated, and simultaneously described methods. Analysed were (a) the morphological structure of the blood vessels and (b) the remains of their contents. The walls of the blood vessels were found to be morphologically identical with those in present-day reptiles. Bodies were found at several places inside the vessels which strongly remind one of erythrocytes in modern bones. X-ray microanalysis of places where these bodies were accumulated revealed much higher levels of iron, than at any other regions of the blood-vessel wall. Further analysis of the "dinosaur erythrocyte" iron content could be a starting point for the possible determination of oxygen in the earth's atmosphere, 80 million years ago.
对有着八千万年历史的恐龙骨骼进行了扫描电子显微镜研究，并进行了X射线微分析。用于研究的样本是按照专门精心制定且同时进行了描述的方法制备的。分析内容包括：（a）血管的形态结构，以及（b）血管内容物的残骸。发现血管壁在形态上与现代爬行动物的血管壁相同。在血管内部的几个位置发现了一些物体，它们让人强烈联想到现代骨骼中的红细胞。对这些物体聚集处进行的X射线微分析显示，其铁含量比血管壁的任何其他区域都要高得多。对“恐龙红细胞”铁含量的进一步分析可能成为确定八千万年前地球大气中氧气含量的一个起点。
