Dinosaur egg fossils are reproductive products that can be passed on from one generation to another. The size of dinosaur egg fossils is very different, the small diameter is about 3cm, the large diameter can reach 56cm. The shape of egg fossils is usually oval, and the most precious of the few long oval, oval and olive shaped dinosaur eggs is the dinosaur eggs with embryos. China is a country with abundant dinosaur egg fossils in the world, which attracts the world's attention both in variety and quantity.
恐龙蛋化石是非常珍贵的 古生物化石 ，最早于1869年发现于法国南部 普罗旺斯 的 白垩纪 地层中，由于在全世界范围内发现的恐龙蛋化石的数量不多。所见到的一般都是蛋的钙质外壳，极少发现保存有某种恐龙胚胎化石的蛋，很难判断所发现的蛋化石是由哪类恐龙产的。因此，在很长的一段时期内，有关恐龙蛋化石的研究工作并没有取得重要的进展。
Dinosaur egg fossils are very precious fossils of paleontology. They were first found in the Cretaceous strata of Provence in South France in 1869, because there are not many dinosaur egg fossils found in the world. It is difficult to judge which kind of dinosaur produced the egg fossils. Therefore, in a long period of time, the research on dinosaur egg fossils has not made significant progress.
1984年在中国出土一件有6500万年的历史的“恐龙蛋窝”化石。本“恐龙蛋窝”化石出土之后，几经辗转流失到中国境外，此件“恐龙蛋窝”化石包含22枚盗蛋龙恐龙蛋，其中19枚恐龙蛋中可见初具雏形的恐龙胚胎。2003年，一名美国收藏家在美国公开 拍卖会 上以42万美金将其买下，后经多方交涉无偿归还中国。这也是中国政府首次通过外交途径追索流失国外的古生物化石。
In 1984, a 65 million year old dinosaur egg nest fossil was unearthed in China. After the "dinosaur egg nest" fossils were unearthed, they were tossed and lost to the outside of China several times. This "dinosaur egg nest" fossil contains 22 dinosaur eggs of egg stealing dinosaur, among which 19 dinosaur eggs can be found with rudimentary dinosaur embryos. In 2003, an American collector bought it at an American open auction for 420000 US dollars, and then returned it to China free of charge through various negotiations. It is also the first time for the Chinese government to pursue the loss of fossil paleontology abroad through diplomatic channels.
This group of dinosaur egg fossil collection weighs 19.2kg. At present, the real value of various individual animal fossils on the auction market is very high, and the value of this dinosaur egg fossil is even more difficult to estimate: because the dinosaur egg fossil can be recorded for hundreds of millions of years, the value of this ancient object will become more valuable with the evolution of time, so in the collection market, Dinosaur egg fossils are hard to find.
恐龙蛋化石是历经上千年、上亿年沧海桑田演变的稀世珍宝，是生物和人类进化史上具有重要意义的科学标本，是世界上珍贵的科学和学问遗产。恐龙蛋化石对于探索恐龙的 繁殖行为 、恐龙蛋壳的起源和演变，复原 恐龙时代 的生态环境；对于研究恐龙的出现、繁盛和绝灭；对于划分和对比白垩纪地层以及确定地层的 地质年代 ；对于研究古气候、古地理和古生物的变迁，提供找矿启示等，都是不可多得的珍贵实物资料。而且，恐龙蛋化石群及其集中产地还是一种非常有价值的旅游地质资源，为发展旅游事业提供了天赐良机。因此，恐龙蛋化石具有十分重要的科学价值、观赏价值、收藏价值和旅游价值。
Dinosaur egg fossil is a rare treasure that has undergone thousands of years and hundreds of millions of years of vicissitudes. It is a scientific specimen of great significance in the history of biology and human evolution, and a precious scientific and cultural heritage in the world. Dinosaur egg fossils are rare for exploring the breeding behavior of dinosaurs, the origin and evolution of dinosaur eggshells, restoring the ecological environment of dinosaur era, for studying the emergence, prosperity and extinction of dinosaurs, for dividing and contrasting Cretaceous strata and determining the geological age of strata, for studying the changes of paleoclimate, paleogeography and Paleontology, and for providing ore exploration enlightenment Precious material materials. In addition, dinosaur egg fossils and their concentrated areas are also a very valuable tourism geological resources, which provides a good opportunity for the development of tourism. Therefore, dinosaur egg fossils have very important scientific value, ornamental value, collection value and tourism value.
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