After Zhou Xixian and Ye Bo's assistant left, they waited for the identification results.

The age of a fossil is not difficult, and the relative age has always been determined by the stratum in which it was found, but since the understanding of the atom has deepened, scientists have found a way to determine the absolute age.

Most of the substances found in nature are the composition of several isotopes (i.e., various atoms with the same atomic number but different mass numbers). Some isotopes are radioactive, i.e. their nuclei emit rays spontaneously and gradually metamorphose into another substance. For example, the radioactive isotope 14C metamorphoses to 14N.

Each radioisotope has its own certain rate of transformation, which is known as a "half-life" – the time it takes for half of the atoms of a substance to transform. Therefore, if we know the half-lives of various isotopes, it is not difficult to calculate the age of an object containing such isotopes by measuring how much of that isotope is left.

At present, the two most widely used methods are the 14C method, which is used to identify organic matter, and the 40K-40Ar method, which is used to identify volcanic strata and fossils related to them. In the case of the 40K-40Ar method, argon is a decay product of the radioactive isotope potassium, which has a half-life of 1.3 billion years, so it is easy to determine the age of the specimen. At present, the method has been developed to be extremely sophisticated, and can identify specimens that are only about 50,000 years old, as well as specimens of the same age as the earth, and all with very little error.

After a while, Zhou Xixian's assistant first called back.

"Is the appraisal result out?" Zhou Xixian stepped aside. He asked in a low voice.

"The results came out, about 200 million years ago. An excited voice came from the phone.

"Isn't that mistaken?" Zhou Xixian's pupils suddenly lit up. was so excited that his voice trembled slightly. 200 million years ago, in other words. That is, the late Triassic, a little earlier than the Jurassic period where the dinosaurs were located.

"There's no mistake, we've identified it twice, teacher, this fossil is of extraordinary value......

"I need you to tell me. Zhou Xixian was afraid that Ye Bo would hear it, so he quickly hung up the phone, forcibly suppressed the excitement in his heart, and walked towards Su Jing, intending to take the lead. Take the fossil down.

Who knows, at this time, Ye Bo's excited voice sounded: "What? 200 million years ago?" Ye Bo was on the phone, obviously his assistant had also completed the identification and got the same result.

"Mr. Su, this fossil must be brought back to the Institute of Archaeology by me. Zhou Xixian knew that the plan to secretly win it was in vain, so he took the first step.

"Nonsense, do you know what it means to come first and come first, I should bring it back to the Institute of Paleontology. Ye Bo was also excited. This spider fossil is at least 35 million years earlier than the earliest relatively complete spider fossil that has been discovered. There is no doubt that this is a precious fossil of great archaeological and research value.

"Then fair play. I'll give 100,000. Zhou Xixian said.

"I ...... I'll give 150,000. The corners of Ye Bo's mouth twitched, and his heart became anxious, because he knew. Fight for money, he can't grab it at all. It's not that the Institute of Archaeology has a lot of funds, but that Lao Zhou himself is very rich.

"Three hundred thousand. Zhou Xi said leisurely.

"Thirty ...... Three hundred and fifty thousand. Ye Bo let it go.

"Five hundred thousand. Zhou Xi said lightly. Ye Bo was speechless for a moment, he was so angry that he blew his beard and glared, his face turned red, and Zhou Xi smiled idly, "Hehe, it seems that this fossil belongs to me." ”

"Old Zhou, I look at this fossil, it's more than this price. Su Jing said with a smile.

"It can't be said that this fossil is just a stone for ordinary people, and only we old things like it, so if you want to sell it for a very high price, it's unlikely. Zhou Xi waved his hand leisurely.

"Don't listen to him, you can sell this fossil at auction, it's worth at least a million. Ye Bo couldn't get it himself, but he didn't want Zhou Xixian to get it so easily. This one-of-a-kind fossil, which is estimated to be liked by many collectors, will not be less than a million if it is really sold, and if no earlier spider fossils are found in the next few years, then the price will rise.

"You old immortal, this fossil is strictly the property of the state, can you just get it and sell it at auction? Zhou Xi said angrily, but he was really afraid that Su Jing would sell it, and said, "One million is one million, how about Mr. Su sell it to me quickly?"

Ye Bo stopped talking now, he didn't really want Su Jing to take the fossils to the auction house to sell, in comparison, it was much better to sell them to the Institute of Archaeology than to sell them to private individuals, he just wanted to pit Zhou Xi.

"Okay, Old Zhou, I'll sell it to you for one million, but there is a condition, when you don't use this fossil, you can occasionally give it to Mr. Ye for research and research. Su Jing said, just released the spiritual power detection, according to Zhou Xixian's mental fluctuations, this should be his highest price, and if it is raised again, he may not buy it. Such a fossil, which is useless to himself, was sold for a million when he changed hands, and this business was not done in vain. As for speaking for Ye Bo, it was for Xue Zonghong's sake.

"Well, that's fine. If you have any fossils or anything like that, remember to come to me. Zhou Xixian glanced at Ye Bo, and reluctantly agreed, for fear that Su Jing would regret it, so he immediately transferred one million to Su Jing.

"Thank you, Mr. Su. Ye Bo also smiled.

"It's just a gesture. Su Jing smiled.

Li Guanglei and the others, who faintly heard the conversation not far away, couldn't help but be surprised, no wonder Su Jing was so rich and could afford to build such a building, and the first floor was even reinforced with alloy plates, it turned out that it was so easy for him to make money, a stone could be sold for a million. When, I will also pick up a few fossils myself to see if I can sell them for tens or millions.

"Speaking of which, it's a little strange that this spider is so well preserved. Zhou Xixian hugged the fossil and said suspiciously, Ye Bo did not speak, but nodded in agreement.

"What's so strange?" asked Su Jing.

"The most intact spider fossil found before this is because it was buried by fine volcanic ash, so the fragile outer bone marrow has not been destroyed, but it has only been flattened, but this one, obviously not, I don't know what the reason is?" Zhou Xixian said.

"This ...... You don't know, it's even more impossible for me to know. Su Jing said this, but his heart chuckled, could it be because of the strong body of the spider in the mortal immortal cultivation world? For example, the giant spider was smashed on the body by a rock, but it did not die immediately, and its body was basically intact, if it was an earth spider, it would have become a meat pie and meat sauce. However, this reason naturally cannot be said.

"Well, take it back and study it well. Zhou Xixian greeted his assistant, picked up the fossil, and left happily, and Ye Bo also said goodbye to Su Jing and left. Looking at the backs of the two, Su Jing thought to himself, hoping that they wouldn't waste too much time on it, after all, no matter what they researched, it was actually very different from the earth. (To be continued.) )