Dragon bird with sticks: scientists successfully extracted the "dinosaur collagen"

Paleontologists looking for extraction of short Guanlong collagen "hip" dinosaurs and birds, birds, dinosaurs and birds associated with gas even sticks

Http://www.thebeijingnews.com source: Beijing News author: XING Lida

Short Guanlong recovery plan and the human body.

Schwaetzer extracted to dinosaur vascular tissue.

Work schwaetzer.

Short Guanlong Mummy Leonardo because saving complete and was listed in the Guinness Book of world records.

Construction of the "Jurassic Park", or province.

After the extinction of dinosaurs, are there left no seed? this is probably the most popular in the field of paleontology concerned about a topic. There is also a topic in the same breath with this: in addition to animal foot dinosaur class dinosaurs and birds very close, another large group of birds and bird buttocks class relationships? today, more and more of the paleontologists are inclined to think that these two topics in fact can be combined together.

Recently, the United States of a paleontology team papers, claiming that again from birds to hip class dinosaur fossils abstraction of the active substance.

In analysing these collagen, they were pleasantly surprised to discover that they and the bird of collagen are very similar. This provides yet another "Dragon bird even sticks" evidence.

1 materials

Dinosaur Mummy family in ""

According to recent science magazine reported that scientists in a 8000 years of history, duck-billed Loon fossil probed vascular and other connective tissue.

The fossil material from a Canada short Karon's thigh. United States, North Carolina State University, paleontologists Mary · schwaetzer and his colleagues, scanning electron microscope to examine the Organization's appearance and structure, they also use mass spectrometers and antibody binding experiments to identify their protein. In addition, these specimens have also been sent to multiple lab independent analysis. The end result shows that the specimens containing collagen, collagen amino acid sequences and the birds of the amino acid sequence is very similar to this in dinosaurs and birds between close evolutionary relationship of mutual provided additional support. The news is released, the popular trend to paleontology '. This makes previously scientists made Tyrannosaurus Rex, amino acid sequence is reliable.

Let us first look at the discovery of the protagonist, Canada short Karon is also Ho huh? although its known as "Canada", but it's more fossils from Montana United States.

Short Guanlong belongs to the duck-billed dinosaurs and Dragons classes, live from 75 million to 80 million years, adult individuals up to 9 meters in length. Interestingly, short Guanlong maintains the most seriously sick and most of the "Mummy" dinosaur records, the former is Ross schweichild, scholars in a number of short Guanlong fossils found Hemangioma, into fibrous Fibroma, metastasis, osteogenic cell tumor, tumor, 2003. The latter is since 1994 discovered mummy of short Karon, these magnificent specimen almost each piece has its own name, such as "Elvis", "Leonardo", "Roberta" and so on, where Leonardo due to the extremely high integrity and be included in the Guinness Book of world records.

2 found

80 million years ago of collagen

Save a wonderful short Guanlong fossils as Mary · schwaetzer research provides a wealth of material.

Dinosaur "meat" may not be the most appropriate, schwaetzer discovery accuracy should be discovered dinosaur of collagen.

Collagen than DNA more lasting stability.

But scientists do not think the dinosaurs died 8000 years, intimate collagen can be fully preserved. Paleontology of the traditional theory that fossil preservation of organic matter in no more than 10 million years. Schwaetzer said: "this fossil is from about 7 m deep sandstone, which belongs to the Montana Eastern Judy River formation, deep sandstone seems to be able to provide special protection from, this is the foundation of our research. ”

Schwaetzer previously in Tyrannosaurus Rex, the leg bones found in a substance suspected of collagen.

Unfortunately, they are in the mining process been destroyed. In order to achieve reliable protein sequence, it is first necessary to guarantee a very secure preservation of specimens, avoid external pollution. Schwaetzer from a complete short Guanlong thigh extracted material, and then sent to is located in the United States Boston's Beth Israel Deaconess Medical Center (BIDMC). She partners with newer, more efficient mass spectrometric analysis equipment to identify protein sequence. "The technology we have used from 7000 years ago of Tyrannosaurus Rex, 30 million years ago of mammoth and milk teeth like a body, all of the results, and get a lot of valuable experience. " Schwaetzer pointed out. Subsequently, these protein sequences are sent to the other two laboratories for verification. As a result, they found a hemoglobin, collagen, elastin and laminin, these are blood and bone cells.

3 significance

Resurrection dinosaurs probably impossible

These extracts may be resurrected dinosaurs, as we in the famous movie "Jurassic Park" see? schwaetzer that extracted from these samples to study the dinosaur DNA genetic, is almost impossible.

As for using DNA experiment in replication, more dinosaurs is absurd. Even if we find a dinosaurDNA, it will be very small pieces. If you want to clone dinosaurs, they must get DNA fragments in the correct order, the number of chromosomes cannot be wrong. Puzzle, we need to reference the original drawing, on the contrary, in the absence of any sample, put the pieces in the correct order is not possible. Then, scientists must also be in the appropriate cells in culture for chromosome samples, external chemical factors, environmental factors and hormones also must be timely. It is almost impossible. Get DNA does not mean that the clone dinosaurs, not to mention the fact that we now have not yet discovered DNA — it seems we don't play clone dinosaurs idea.

But the real significance of this study where? schwaetzer found dinosaur in collagen peptide and sources of birds.

Moreover, the researchers used a short sequence of collagen Karon with 21 are animals and milk teeth like, Tyrannosaurus Rex, the two made a strict palaeontology, Karon and Tyrannosaurus Rex found short at the same branch, the branch of the Group's other members includes the ostriches chicken and, while a crocodile and lizard is farther away. The evidence of dinosaurs and birds with a clade!

From a Tyrannosaurus Rex to short Karon, the relationship between dinosaurs and birds are getting closer and closer.

Subsequent research will provide the direction for more support, modern paleontology began to show a remarkable charm.

■ Paleontology Daren dinosaur territories "Super Mary"

"Super Mary" everyone played.

But few people know that in Paleontology, also have a "Super legends of Mary". "Mary" in the name of the dinosaurs and their close relatives of a very important role, here we come to understand how these "Super Mary."

• Mary · peace United Kingdom early fossil collector and paleontologists.

She resides in Dorset County of Lyme Regis is a famous fossil origin. She has been engaged in the work of collecting fossils. Are under the age of 12 years old when she discovered the first fossil with complete nor. Later, she also found the first snake-necked Dragon and a pterosaur fossil.

• Mary ·

Ann United Kingdom doctors mantel's wife. She has a chance of finding a paleontology teeth. Subsequently, the metal found more such teeth, after confirmation, he put this animal named Iguanodon. This was the first to be named one of the dinosaurs.

• Mary · en United States fossil collecting home Barnum ·

Brown's wife. It is in her help, Brown dug up the world's first a Tyrannosaurus Rex fossil.

• Mary · niche famous United Kingdom human science "niche family" members of the first generation, in East Africa found significant human fossils.

• Mary · schwaetzer United States paleontologists, dinosaur "meat" of the discoverer and researchers.