Tens of millions of years later, in the Cretaceous period, there was another mass extinction event, which led to the extinction of all dinosaurs, and the complete extinction of dinosaurs, a species that dominated the earth for more than 100 million years.

As for the cause of this extinction, most people believe that it is related to global climate change, small celestial bodies hitting the earth, or frequent volcanic eruptions, whether the crater here will be left by celestial bodies hitting the earth, it is difficult to say, and in the 21st century, this crater cannot be found, perhaps it has sunk to the bottom of the sea by that time, and people cannot find it.

Zhang Jun walked towards the center of the giant pit, he found that the closer to the center of the huge pit, there was a raised object more obvious, he could already see a rock-like object standing not far away, this object seemed to be round, but only one section was exposed on the surface, and part of it was buried in the ground, it was about fifty meters in diameter, the color was blue-black, and the surrounding color was somewhat different.

"Meteorite?" Zhang Jun's first impression was that this thing was a meteorite, which is not uncommon in the 21st century, and he guessed that it was a meteorite from space.

Such a large meteorite, if it hits the earth, may be more powerful than the explosion of a nuclear weapon, one can imagine how great the damage to the flora and fauna in the surrounding area will be when it falls, and it is estimated that it will be affected to varying degrees within a few hundred kilometers.

Zhang Jun led the dragon group to the vicinity of the round stone block that looked like a meteorite, and then stopped, and when Zhang Jun approached, he was immediately shocked because he discovered an amazing fact.

On this stone, there are some patterns and strange symbols, the patterns of people, mountains, fire, animals, plants and so on, but the animals and plants on these patterns are very different from the late Jurassic, and almost all the animal patterns cannot be matched.

Among them is an eight-legged monster that looks like an octopus, but has a different body from an octopus, it is tall, it looks like an upright walking animal, and its head is more like an ape. There are other odd animals, such as carnivores with tall cockscomb-like crowns, reptiles with four ears, which look like the product of genetic mutations that are not found in the real world or in the twenty-first century.

Zhang Jun studied it carefully, and the plants painted on the stones were also different, and he found that the trees on it could not find their original form in reality, and the leaves of a kind of tree were twisted and twisted, like swimming snakes, which was very different. Most of the other patterns are symbols, which seem to be the expression of some kind of text.

Soon, the dragons found that Zhang Jun had walked around the stone several times by himself, and the other Allosaurus had not understood and was not interested in the slightest, only the bald dragon seemed to be interested in symbols and patterns, and it was somewhat serious about following the leader in circles, playing the actions it liked to imitate the object of worship.

These patterns mean the birth of civilization, Zhang Jun couldn't understand how this meteorite, which seemed to come from an alien planet, could have recorded so many strange patterns in it, and wondered if this meteorite came from a civilized planet in outer space.

Zhang Jun carefully observed the surrounding landform and found that this should be a large crater that was hit by this meteorite, and it is very likely that this stone is a meteorite, so these patterns are likely to really come from aliens.

"An alien civilization?" Zhang Jun is very excited that he can find objects related to civilization, and he is from the civilized world, and he very much wants to understand the meaning of these patterns and symbols.

Zhang Jun found that the surface of this meteorite was covered with these patterns and symbols, and it extended to the root of the meteorite, he carefully gouged the ground with his claws, and found that the part of the meteorite buried in the soil also had these similar patterns and words.

These things are worthless to other Allosaurus, but they are very meaningful to Zhang Jun, because he has always wanted to develop his own civilization in the Jurassic, leave his wisdom and some abilities in this world, and become the driving force behind the generation of civilization in this world, so it is not in vain.

Zhang Jun didn't know what these civilizations from outer space meant, but he knew very well that this must be some kind of expression of aliens, but their planet was probably very far away from the earth and could not be reached at all, but this meteorite reached the earth for some reason, and by the way, it carried the achievements of alien civilization.

Zhang Jun wondered if there was a necessary connection between this meteorite and the multicolored stone and the five-pointed star blade, maybe they were just products of different worlds and were not the same thing at all, or maybe they were somehow related, and everything needed to be further explored.

Zhang Jun's biggest purpose in this world is to survive, he doesn't want to create any earth-shattering scientific and technological civilization, but if a certain civilization can improve his own ability, this is what he must pursue, such as making his life longer.

Zhang Jun was eager to stay and study the meaning of these words and patterns carefully, because he took a cursory look and found that they seemed to represent a certain kind of text, expressing a certain meaning, which he could not understand at the moment, but if he was given some more time to study, he would definitely figure out some of the meanings.

Zhang Jun also found that among these patterns, there are ten kinds of symbols that appear most frequently, these ten symbols are almost all over the surface of the meteorite, and many symbols are composed of these ten basic symbols, which looks very much like a series of number symbols on the earth, and there seems to be some kind of similarity.

And in an inconspicuous place, Zhang Jun unexpectedly discovered two amazing patterns, that is, the multicolored stone pattern and the five-pointed star leaf pattern, this discovery made Zhang Jun immediately fall into great excitement.

"Could it be that the multicolored stone and the five-pointed star leaf are things from an alien civilization?" Zhang Jun immediately began to unfold infinite reverie.

It seems that the multicolored stones and pentagram blades are really not small, and they are actually related to the patterns on the meteorite, which shows that they are very likely to be related to the planet from which the meteorite came from, or maybe they themselves are some kind of civilization product on that planet, otherwise the pentagram blades would not have made Zhang Jun's body grow several meters in a month.

Zhang Jun couldn't believe that this was true, and he immediately decided to stay and settle on this island now, and slowly figure out the meaning of this symbol and pattern, maybe it will help him improve his ability and lifespan.

In order to stay, the problem of food and water must be solved, not only by raining ground and standing water of plants, but also by finding lakes and rivers on the island, and a hunting ground where large game can be caught. So Zhang Jun's next task is to move on, find a suitable habitat, and then come back to study the words and patterns when he has time.

PS: A little bit of content has been modified and deleted before, please forgive me for the inconvenience caused to everyone reading