CAJ | 학술논문

恐龙蛋化石是探索恐龙起源和演化的重要研究材料,由于恐龙蛋化石的珍贵性,对其进行实体解剖的可行性较小,应用医学界 CT 扫描技术于恐龙蛋化石的内部形态研究具有特别的意义。早期部分学者已应用 CT 扫描对恐龙蛋化石进行了有益尝试,绝大多数均显示恐龙蛋化石内的胚胎结构由于成岩作用未被保存下来,仅有少数报道保存了恐龙蛋胚胎结构,但也因当时 CT 扫描技术不完善,结果不明确、图像不清晰等可能存在着一定问题。本次研究利用第二代双源 CT(SOM-ATOM Definition Flash CT)以1 mm 层厚,1 mm 间距对长安大学地质博物馆馆藏18枚恐龙蛋化石内部结构进行研究,测出恐龙蛋内部各部分的密度分布数据,发现仅有一枚标本卵壳与原生质之间存在规则的空腔,可能保存了恐龙蛋胚胎的原始结构。
공룡단화석시탐색공룡기원화연화적중요연구재료,유우공룡단화석적진귀성,대기진행실체해부적가행성교소,응용의학계 CT 소묘기술우공룡단화석적내부형태연구구유특별적의의。조기부분학자이응용 CT 소묘대공룡단화석진행료유익상시,절대다수균현시공룡단화석내적배태결구유우성암작용미피보존하래,부유소수보도보존료공룡단배태결구,단야인당시 CT 소묘기술불완선,결과불명학、도상불청석등가능존재착일정문제。본차연구이용제이대쌍원 CT(SOM-ATOM Definition Flash CT)이1 mm 층후,1 mm 간거대장안대학지질박물관관장18매공룡단화석내부결구진행연구,측출공룡단내부각부분적밀도분포수거,발현부유일매표본란각여원생질지간존재규칙적공강,가능보존료공룡단배태적원시결구。
Dinosaur egg fossils are important research material to explore the origin and evolution of dinosaurs.As the egg fossils are very precious,they are in feasible for dissection.In this case, there is a special significance to apply the medical computed tomography scan technology into the internal morphology study of dinosaur egg fossils.Some scholars tried to use the medical compu-ted tomography in research,whose results showed that as a result of diagenesis,only a few em-bryonic structures inside the dinosaur egg fossils were preserved.However,because of the im-perfect computed tomography scanning technology,those studies may be disadvantaged by un-clear results and graphics.The authors used the second generation of the dual-source computedtomography to study the internal structure of the eighteen dinosaur egg fossils collected in the Geological Museum of Chang’an University with 1mm thick and 1mm spacing.Theconcrete den-sity distribution of each section inside were measured,and it is discovered that only one egg em-bryo fossil has a regular cavity between the egg shell and protoplasm,and the original structure of dinosaur egg embryomay be saved.