Hurriedly returned to the exploration square of the F4 building site, and Chen Han really saw a small gray-white leg bone exposed in the north corner of the exploration party.

There are not many parts of the skeleton exposed outside the soil, about 3-4cm, but Chen Han can see at a glance that this is a human skeleton.

And based on the shape and thickness of the exposure, he could also deduce that it should be a calf bone or a hand bone.

Because except for the limbs, the bones in other parts will definitely not reach this thickness!

Chen Han hurriedly took out a brush and bamboo skewers from the toolbox.

Squatting in front of this skeleton that has not yet been revealed, his expression is serious like a film master under the overpass, carefully cleaning up the soil covering the bones.

Removing the skeleton is no easy task.

Archaeological excavation is a matter of extreme patience and meticulousness, and it is very abrasive to remove the soil covering the bones without destroying the state and posture of the bones.

But Chen Han didn't feel irritated and troublesome at all, and enjoyed it very much.

Little by little, the skeleton, which had only half of its leg bones exposed, began to reveal what it was before it was buried.

At two o'clock in the afternoon, when Zhang Jianbo, Su Sa, and Zhuang Yunpeng finished lunch, took a nap, rested for a while, and returned to work again, Chen Han had already cleaned out most of the bones!

"Damn, you cleaned this out in three hours?" Zhuang Yunpeng was dumbfounded and looked at the skeleton that had already exposed the lower half of the skeleton, which was a shock.

Generally speaking, such a skeleton that is completely buried deep in the soil can be cleaned out of one-third of it in half a day, which is considered a fast progress.

How can there be anything like Chen Han, who can clean up most of them in three hours!

Su Sa walked quickly to Chen Han's side and squatted down, staring at the skeleton in front of him.

"The pelvis has been cleaned out."

She observed carefully for a while, and stretched out her hand to greet Zhuang Yunpeng and Zhang Jianbo.

"Come and see."

"The pelvic wall of this skeleton is thin and smooth, the side walls are straight and shallow, the entrance is wide, and the exit is oval."

"And the inferior pubic angle is significantly greater than 90 degrees!"

"It's clearly a female skeleton!"

Zhuang Yunpeng and Zhang Jianbo squatted over one after another when they heard the sound, and looked up and down the lower body of the skeleton with Su Sa.

Every archaeologist has learned how to determine age, sex and height from bones.

They and the forensic doctor taught this by the same master.

And this skill should be more handy for archaeologists than forensic medicine.

After all, forensic doctors usually do not encounter a body that has been ossified when performing an autopsy, and it is not easy to encounter it once in a few years.

Archaeologists, on the other hand, basically have to dig up more than a dozen skeletons a year, and even this is quite a few.

Therefore, although Zhuang Yunpeng and the others are still quite young, they are all experienced in this aspect of bone judgment.

By the difference between the pelvic bones of men and women, they easily judged that it was a female skeleton.

"Well, this skeleton is indeed a woman." Chen Han, who was seriously cleaning the soil layer with his head down, said without looking back: "It's not just a woman, but this is also a very young woman." ”

"Judging by the age change of the pubic symphysis, the age of death of this female skeleton should be between 23 and 26 years old, even if it was 4,000 years ago, this is considered an untimely death."

"Oh?" Hearing this, Zhang Jianbo looked at the pubic symphysis of the skeleton.

The age of juvenile bones is mainly determined by the time of appearance of ossification centers of the extremities and the degree of epiphyseal healing.

For bones over 20 years of age, the age change of the pubic symphysis is the most valuable.

Secondly, in the case of incomplete bone preservation, it is also possible to look for the remains of the tooth, and the age of the deceased can be inferred from the age of the tooth.

The upper body of this skeleton has not been cleaned out, and the teeth are not to be found for the time being.

But the pubic symphysis has been cleaned up.

After the three of them gathered around the pelvis and carefully observed, they all nodded in agreement with Chen Han's inference.

This is indeed the skeleton of an adult female aged 23-26 years.

Zhuang Yunpeng rubbed his chin and sighed twice, and said with some emotion: "The ancestors in ancient times, it was not easy to live a long life. ”

"Twenty-year-old girls in the flower season, we are still children."

Chen Han, who was indifferent at all when Su Sa was startled on the side before, rarely stopped what he was doing when he heard Zhuang Yunpeng's emotion, turned his head to look at him, and said very seriously:

"Senior brother, I'm 23 years old this year."

"Ahem..."Zhuang Yunpeng waved his hand again and again: "I didn't mean to say your child, the young man's association ability is not so strong." ”

Su Sa couldn't help but shake his head: "Okay, let's start work too, let's talk about it after we finish work." ”

Seeing that Chen Han had almost cleared out half of the skeleton in only three hours, Su Sa still had a sense of urgency in his heart.

Why can't this senior sister lose to the junior brother who has just started!

After picking up the square-headed shovel, Su Sa chose a corner, and immediately threw himself into the struggle.

Zhuang Yunpeng and Zhang Jianbo glanced at each other, shook their heads, and picked a position to dig again.

Although it was said that this skeleton was the first to be discovered by the two of them, Chen Han had already cleaned up most of it, so they were embarrassed to grab it with their junior brother again.

The left and right are just a skeleton, and it is not enough to say how valuable it is, and the two of them soon stopped caring about it.

After a brief period of excitement, it was quiet again, leaving only the "rustling" sound of shovels and brushes.

Half an hour later, when the sun had already sunk halfway up the mountain, a sound of surprise broke the peace in the exploration again.

"Huh... Odd! Chen Han held a brush in his hand and looked at the white skull that had just emerged in front of him with some confusion.

Chen Han's voice of surprise clearly came into Zhuang Yunpeng's ears.

The three of them gathered around Chen Han again, wanting to see what problems the little junior brother encountered.

I saw that a skull with a curved shape appeared in front of Chen Han.

It stands to reason that when cleaning bones, it is normal for skulls to appear.

As long as people have heads, it's strange that they can't find a skull!

However, soon Zhuang Yunpeng and the others understood why Chen Han was surprised.

The skull is indeed a skull, but the skull appears in a slightly wrong place, and the shape is a little wrong.

The skull was found on the female corpse's chest, and it was clear that this was not where it should be.

"Is this a severed skelet?" Zhang Jianbo guessed with some uncertainty.

"That's not right!" Zhuang Yunpeng shook his head, stretched out his finger and pointed at this skull, and gestured a few times with his hand: "The size and shape of this skull are obviously not the same as this skeleton. ”

"An adult's skull shouldn't be so small!"

"Even if this skeleton is a woman, the proportions of this skull are a bit too small!"

Su Sa nodded thoughtfully.

Then the truth is already coming out.

"These are two superimposed skeletons?!"

"Under this adult woman, there is still the skeleton of a small child?!"